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7

First of all, your "main question" contains a lot of small other questions, which I think are difficult to answer as we are not your sister's neurologist (we haven't seen the MRI, we haven't examined her,etc...) But I will try to address some of your concerns: What are arachnoid cysts? Arachnoid cysts (AC) are a collection of cerebrospinal fluid (CSF) ...


3

No, wearing a mask cannot help fight infection when sick. A sick person can wear a face mask when around others only to help prevent the spread of flu. Wearing a face mask limits the spread of tiny infected drops that are released when a person talks, coughs or sneezes. After all, the masks were originally designed to protect patients from the coughs and ...


2

Actually I claim being the first one - about 30 years ago when I was a teenager I had the idea to cure my sinus infection by honey. Tried once, had similar burning result as you did, and an allergic reaction on top of it (heard of pollen allergy? - thats what honey is full of). Concluded as a failed experiment. From evolutionary perspective I do not see how ...


2

In sinusitis, there may already be a negative pressure in the sinuses (nih.gov). One problem is that in sinusitis the openings that connect the nasal cavity and sinuses are usually clogged, so the attempt to create a pressure difference might be quite hard. I'm not aware of any published experiments on this topic, but as suggested in one comment: the one ...


2

The American Rhinologic Society says: Nasal/Sinus Irrigation Conclusions: Recent research has confirmed that sinus and nasal irrigations with salt water are helpful. Multiple devices are available for delivery however the high volume and positive pressure methods seem to work the best. Both the irrigation device and the water source have the potential for ...


2

There are 4 sinuses : frontalis, ethmoid, maxillary, and sphenoid sinus. Frontal sinus, it excrete mucus into the meatus medius via a small opening called hiatus semilunaris anterior . Anterior and middle sinus of ethmoid also excrete mucus to meatus medius. The sphenoid sinus drainage to sphenoid recess. The two sinus drainage to meatus medius, but below ...


1

For nasty sinus infections, which are generally bacterial, "fighting the bacteria with lots of sugar" seems like a very bad idea to me. Viral sinusitis generally resolves within a few days - it's very difficult to demonstrate that any home remedy speeds up healing in such a short window. That said, honey has been demonstrated to be somewhat anesthetizing ...


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