Questions tagged [dermatology]

Questions about diseases or disorders of the skin fall under the general tag "dermatology", which is the branch of medicine dealing with the skin. This includes the skin's structure and function as well as any disorders or diseases. It also deals with structures generated in/by the skin, e.g. sweat, oils/sebum, hair, nails, moles, warts, skin coloration and its disorders, etc.

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26 views

Is there robotic hair removal which is selective for white hair? [closed]

Is there robotic hair removal which is selective for white hair (in young people with some 50 white hairs that happened only in the area of the utilization of some shampoos)? I would assume that a ...
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does the treatment of Ingrown Toenail pain [closed]

I started having some irritation in the sides of my toenail about 3 weeks ago , later it started turning red , and finally last week , some pus started coming out , now my doc has advised me to get a ...
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1answer
71 views

Does the damage from sun exposure outweigh the benefit of getting vitamin D?

I have read some articles where they recommend a direct exposure to the sun of about 20 to 30 minutes, others say that 10 to 15 minutes, another that 5 minutes is enough, etc. I suppose it depends on ...
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Vaseline is used to reduce scarring following keratosis. Is there a substitute ointment that will be less uncomfortable when used near the eye?

Note for close voters: this is a quite general question for improving the treatment of patients going through scaling a seborrheic keratosis located near their eye. It is not a personal medical advice ...
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58 views

Recurrent injury on the same spot

What would happen if someone gets a wound on a scar, e.g. a recurrent skin excoriation, abrasion, scratch or cut on the same spot on his foot? Will it be more resistant to the same cause of injury or ...
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30 views

Hair loss without having genetics (father and mother) of hair loss

What causes hair loss when we seem to have no genetics propensity for it? My father has no sign of hair loss. How to treat this — foods, routines, medicines, etc. Please provide a detailed answer.
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11 views

What are the possible complications of facial liposuction in humans?

I have read about facial liposuction and understood it is a relatively rare liposuction procedure done only with a syringe (generally no electromechanical liposuction device would be used) in focal ...
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37 views

Endoderm And Ectoderm

According to Wikipwdia: Ectoderm is one of the three primary germ layers in the very early embryo. The other two layers are the mesoderm (middle layer) and endoderm (most proximal layer), with the ...
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16 views

For how long does the application of topical retinoids increase photosensitivity?

I read on https://www.medscape.com/viewarticle/726464_6: Owing to potential photosensitivity, topical retinoids are best applied at night and patients should not expose themselves to excessive UV ...
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18 views

Is autosensitization dermatitis fully synonymous with id reaction, and if not, what's the difference?

Autosensitization dermatitis and id reaction have different Wikipedia pages, but I can't understand the difference between them. Is there any, or are they synonymous? When I asked on a translators' ...
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74 views

Seboorrheic Dermatitis, Fungi, Environmental Factors

How can seborrheic dermatitis not be caused by poor hygiene as the assotiation for dermatology said? Wouldn't poor hygiene at least aggravate the condition? The treatment is mainly antifungal. And ...
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11 views

What's the difference between a corn and a callous?

What's the difference between a corn and a callous (on a foot)? How do you tell and, more importantly, is the treatment different (for example, the drug store has both corn and callous removers but I ...
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1answer
55 views

What kind of health effects do beards have, if any?

Do having beards have any health effects? I suppose it depends on the type and the hygiene of the beard, e.g., having a very long, dirty beard might create a suitable environment for bacterias to ...
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2answers
225 views

Are soap-free cleansers effective against COVID-19

It is recommended to regularly wash hands with soap to slow the spread of COVID-19. However regularly washing with soap can be harmful to the skin. Soap-free cleansers such as QV Wash are frequently ...
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66 views

How do dermatologists treat skin tone tattoos?

Please assume a case when a patient had a skin tone colored (a.k.a body colored) tattoo on a scar, to cover that scar, but that tattoo wasn't satsifcatory. If the tattoo was black, laser was likely a ...
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1answer
74 views

How deep into the skin do topical acne medications penetrate?

Given a topical gel that is a mixture of dapsone (6%), an antibiotic spironolactone (5%), an androgen blocker niacinamide (2%), a form of Vitamin B3 and skin brightener How deep into the skin do ...
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50 views

Are there a plastic surgery conditions of a “double chin” or “triple chin”?

Executing Is there a plastic surgery condition of a "double" or "triple" chin? as a search query in three search engines (Google, Bing, DuckDuckGo) and looking at images brought me almost no results ...
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41 views

How dangerous for the human skin are naturally occurring wavelengths above 380nm?

I read on https://www.cancer.org/cancer/cancer-causes/radiation-exposure/uv-radiation.html: UVA rays have the least energy among UV rays. These rays can cause skin cells to age and can cause some ...
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60 views

What is the essential difference between injection lipolisis and liposuction by mean of adipose cells outcome?

I am having the problem of not understanding the essential difference between injection lipolisis and liposuction by mean of adipose cells outcome. Injection lipolysis I understand that injection ...
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21 views

Difference between medical and general dermatology [closed]

So I am looking at the different clinical interests of dermatologists on the clinic's website. One provider lists their clinical interests as general dermatology and medical dermatology. I'm ...
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5 views

Is there “dermosuction” similar to liposuction?

As of January 2020, is there a medical technique to "suck" excessive skin tissue just as fat is being "sucked" in liposuction, without the use of a scalpel? In other words: Is there "dermosuction" ...
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1answer
37 views

Is there any evidence for any positive effects on body functions by alkaline spas?

When a friend asked me what she could expect from alkaline bathings, did I know of any evidence. A quick research also did not reveal meaningful data. From what I know there should be absolutely no ...
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92 views

What is the essential difference between laser for hair/scar/tattoo removal?

I don't have enough physics knowledge to understand the possible difference between laser for hair removal, laser for scar removal and laser for tattoo removal. My problem I don't understand what is ...
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47 views

Are there any substances that can make the hair grow more straight or smoother?

From prior research on substances that change hair texture, I read in the past (and couldn't find lots of sources now) that some Vitamin A derivatives or acne medicines can cause curly hair and that ...
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1answer
38 views

What kind of physician, if at all, adjusts a tattoo in human-skin-color and makes such tattoos to disguise scars?

I understand from this article and from further general reading that tattooing is often done by physicians, or referred to by physicians, if a physician thinks it is the best option to disguise some ...
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29 views

Can hair transplant on scar tissue cause hypertrophic (yet not necessarily keloid) scarring and if so, how it is avoided?

It is possible and common to conduct hair transplant on scalp for men and women and on facial beard areas for men ("beard filling" or "beard completion"). Both described transplants are possible to ...
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157 views

Is there a standard model of scar healing and if so what are its main stages?

I have searched for a standard model of scar healing to learn how dermal scar tissues are formulated and evolved but didn't find one; rather, I found somewhat inconsistency between different ...
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1answer
59 views

Can the use of hydrogen peroxide in dentistry worsen the oxidative stress in patches of facial vitiligo vulgaris?

According to this study 1, hydrogen peroxide is not absorbed by the skin, but can cause systemic toxicity when inhaled or ingested. I am not entirely sure how often hydrogen peroxide is inhaled or ...
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14 views

Can diseases associated with hyperpigmentation help to find a cure for hypopigmentation such as vitiligo?

Wikipedia 1 has quite an extensive list of diseases that are associated with hyperpigmentation such as Addison's disease and Cushing's disease. Are there any known studies of the diseases that ...
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2answers
152 views

Why does dandruff shampoo loose effectiveness without shampoo alternation?

I've heard often 1 2 that alternation between anti-dandruff shampoos containing ketoconazole, zinc pyrithione, coal tar, selenium disulfide or salicylic acid is needed for the treatment to stay ...
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18 views

How do melanin or pigment related genetics from Vitiligo patients compare to or differ from Albinism patients?

The definition of Albinism is: Albinism is a congenital disorder characterized in humans by the complete or partial absence of pigment in the skin, hair and eyes. 1 The definition of Vitiligo is: ...
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59 views

Is vitiligo transmitted by heredity from one generation to a later one?

There seem to be many testimonies on the internet that suggest that vitiligo is heritable 1. According to a Quara answer 2, there is apparently a 5% chance of transferring vitiligo to your kids. Yet, ...
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36 views

Is tacrolimus carcinogenic and if so, what causes it to be?

The FDA issued a health warning 1 regarding the possible cancer risks of tacrolimus ointment, however, British dermatologists2 don't consider this a significant concern and they are increasingly ...
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1answer
57 views

Can tacrolimus creme cause tacrolimus toxicity?

Tacrolimus is a medication given to patients who underwent organ transplantation. Increased serum level of tacrolimus may cause overdose symptoms. Apparently the normal tacrolimus serum level is ...
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72 views

How does tacrolimus affect vitiligo-affected skin and hair (re)pigmentation?

While tacrolimus (Protopic) creme was not created with the purpose to treat vitiligo, it is prescribed by dermatologists for that purpose. The non-pigmented hairs in vitiligo affected skin treated ...
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0answers
14 views

What factors (hereditary or acquired) affect the formation of tan tones and why some people lose tan earlier than other?

I compared two people (both Russians, both have the same skin tone) after tanning. One tan passed after 4 weeks, the other holds even after 4 months. I do not have professional knowledge in ...
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1answer
60 views

What is the difference between eczema and urticaria?

What is the difference between eczema and urticaria? I want to know the pathophysiology and most common causes to understand why they are different !
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1answer
122 views

Do synthetic fabrics pose a health risk?

Background I've seen a large number of health blogs that describe Polyester, Rayon, Acrylic, and Nylon, as harmful or toxic (usually due to chemicals used during the manufacturing process). Some ...
2
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1answer
51 views

Scar size and human growth

Let's say a toddler has a 4-inches scar running from his eye to his mouth. Will the scar be stretched that when he reached adulthood his scar still runs from his eye to his mouth? I remember reading ...
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57 views

Repairing skin, fat, muscle tears

I have a basic question. I have seen videos of wound treatment, where the doctor induces bleeding around the edge of the wound... to create granulation tissue... then suturing the wound. My question ...
4
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2answers
104 views

Why does acne get worse during the first two weeks of treatment with isotretinoin?

I've heard and read from multiple sources that acne gets worse during the first two weeks of treatment with isotretinoin, but I haven't been able to find an explanation as to why this happens. From ...
3
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1answer
89 views

What treatments are available for dandruff/psoriasis

There are basic anti-dandruff shampoos such as Head & Shoulders, and there are coal tar treatments such as Alphosyl 2 in 1, Capasal, Polytar or T/Gel for itchy and flaky scalp problems, but if you ...
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0answers
15 views

What are the minimum specifications for a dermascope?

In addition to professionally sourced dermascopes that tend to be expensive are several low end devices that connect wirelessly to a smartphone. What would be the minimum specifications of a device to ...
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2answers
189 views

“There is a very strong correlation between consuming dairy products — such as milk — and acne, skin breakouts and aging.”

I read an article here that says: “There is a very strong correlation between consuming dairy products — such as milk — and acne, skin breakouts and aging.” The reason? Hormones, Bella says. ...
4
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2answers
89 views

Can you prevent skin tags?

Skin tags, formally known as acrochordons, are small pieces of flesh that protrude from your skin. You’ll know it’s different from a wart or mole because of its pedestal base. Warts are flat on top ...
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2answers
56 views

Biochemistry of (tap water) iontophoresis?

I'm curious to know what science has to say about the biochemical processes of tap water iontophoresis. I was trying to find some insights from the mechanism of action to answer things like: Why does ...
2
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0answers
48 views

The relation of weight loss speed and loose skin

For the past week I have been hunting for the answer to the following question: Does the speed at which you lose weight have any relationship with loose skin? And the real question, why or why not? ...
2
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2answers
870 views

Do UV-B emitting lamps for reptile pets produce vitamin-D in human skin?

There are those lamps like e.g. "ReptiGlow" for pet reptilians, to keep them healthy, the output being graded e.g. by habitat: jungle (trees somewhat reduce the UV that hits the animals), or desert (...
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1answer
195 views

How can one product work both as a skin moisturizer and a soap?

The pharmacist gave me this cream for treating dry/dead skin on fingertips, and she also added that I can use it as a soap as well! The manufacturer also confirms this. Normally, you don’t apply soap ...
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24 views

What UV intensity (watts per area) should be the maximum a light-skinned person should be exposed to?

I have a UV AB meter that can measure UV A and B light intensity in microWatts/(centimeters squared). In direct afternoon sunlight, I measure UV AB at about 3000 microWatts/cm^2. In the shade of the ...

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