On a recent bike trip I slipped on a gravel road and got abrasion around the knee. The wound was dirty with gravel dust and I instinctively cleaned it with water from my drinking bottle. Then I went to a pharmacy and got it disinfected (Octenisept, wound disinfectant) and then covered with a sterile patch. A few days later I want to my physician and she did the same thing again.

There are a lot of affordable first aid kits available in outdoor shops and I want to get one for the next trip. All of them contain various bandages and compresses. Disinfectant spray seems to be missing, though. My experience now is that the essentials for abrasions are spray and some bandage to keep out the dirt.

While trying to research this, I found a help page of the German Red Cross stating that it is forbidden to (a) touch, (b) clean, (c) apply powder, creams, sprays, disinfectants and (d) remove foreign matter. Exceptions are just thermal and acid burns as well as rabis bite wounds. Any wound must be treated by a doctor as soon as possible.

If I apply that to my case, I would have taken a bandage from my (to be purchased) first aid kit and wrap it around the wound with all the dust still in it. Then I would have to go to the ER of the next hospital.

In contrast, the manufacturer of the spray writes that it intended for small wounds like cuts and abrasions that happen during sports. And it gives instructions for usage, so this implies that a layperson should apply it to wounds.

Perhaps it is also a legal issue? The Red Cross addresses the general public which tries to help but sometimes overdoes it. So they just state that one should be very conservative when helping. Say one applies the wrong kind of disinfectant spray and it makes it just worse. In Germany you are not liable if you just try to help (to some extent). Perhaps this waiver stops right where you apply things and not just a sterile bandage? So even though in this particular situation it would be the right thing, a layperson would not know and therefore the general advice is conservative?

Please excuse my medical naivity, but isn't applying water and then desinfectant spray better than just wrapping up the dirt?

  • American Academy of Dermatology. aad.org/public/skin-hair-nails/injured-skin/wound-care
    – Gordon
    Jul 28, 2018 at 14:17
  • American Academy of Family Physicians. aafp.org/afp/2002/0715/p315.html There may be no precise concensus, but this should be enough to get the spirit of the matter at hand. :)
    – Gordon
    Jul 28, 2018 at 14:25
  • Here is some information from Merck Manuel Consumer Version: merckmanuals.com/home/injuries-and-poisoning/first-aid/wounds
    – Gordon
    Jul 28, 2018 at 14:54
  • @Gordon You need to put this information in an answer, not comments. Answers in comments are specifically prohibited and most mods will delete your comments if they see them.
    – Carey Gregory
    Jul 28, 2018 at 15:19
  • @CareyGregory yes, you are right. I will try to make more formal answers in the future. I may make this one into an answer but I will wait to see if a more qualified person makes an answer.
    – Gordon
    Jul 28, 2018 at 16:10

1 Answer 1


In Germany, first-aiders may not apply medication:

Medication in general mustn't be applied by first-aiders. This also encompasses cases in which a customer in a pharmacy suffers from an asthma attack. One may only hand the patient their asthma spray, but they need to apply it themselves.

Medikamente verabreichen dürfen Ersthelfer prinzipiell nicht. Das gilt auch für Fälle, in denen etwa ein Kunde in der Apotheke einen Asthma- oder Angina-pecoris-Anfall erleidet. Dem Betroffenen darf lediglich sein Asthma- beziehungsweise Nitro-Spray gereicht werden, anwenden muss es der Patient selbst.

Source: Pharmazeutische Zeitung

I think this is why the DRK page explicitly states that it is forbidden to (a) touch, (b) clean, (c) apply powder, creams, sprays, disinfectants and (d) remove foreign matter.

In my first aid training (which isn't as fresh as it should be), it was pointed out that giving patients one's own medication is an even bigger no-go, and disinfectants were explicitly included in that ruling. The workaround solution is to forget the octenisept® next to them and let them have it this way.

Even in the DRK Sanitätsdienst (basically volunteers with a broader first-aid training that will help the emergency services in large festivals), a protocol needs to be filled out when disinfecting wounds (formally, not many do).

The above is all about giving medicine to strangers, no one can prevent you from doing all that to yourself. The DRK page is a guide for first-aiders, hence it "forbids" applying medication to others...

For wounds, applying water might not be the best idea. Usually the wound cleans itself through bleeding if dirt gets deep into the wound (and if it's only on top, it doesn't matter), but the water will delay the clotting process. For cleaning a rash, get a sterile compression, apply disinfectant and put it on top of the rash, while applying a little pressure. This way, the dirt will stick in the compression and the wound cleaned.

  • That explains it! The water indeed delayed the clotting process, but I had cleaned it out with disinfectant later, so the same thing. In my particular case my whole leg was covered in dust, I assumed that without water cleaning dirt would move into wound later on. — As this is for my own aid kit, I should pack disinfectant but only use it on myself. — And regarding the legal issue I should research that for my upcoming trips to NL, DK and E as well :-). Jul 28, 2018 at 17:43
  • Not affiliated, but get octenisept. It simply is the best on the market right now, IMHO. You can hand it to strangers, as long as you let them apply it on their wound. The legal issue is very likely going to be the same EU wide, and things like the Good Samaritan Law are effective world-wide. This is kinda also part of the Good Samaritan Law: Do what you can, but obviously don't do what you don't know. First-aiders don't know enough about medication, neither about tracheotomy, so they shouldn't perform either.
    – Narusan
    Jul 28, 2018 at 19:37
  • 1
    My British first aid manual (Red Cross, SJA, St Andrews) says to rinse a dirty wound under running water and seek medical advice if there is a risk of infection. My German Red Cross manual (advanced first aider/paramedic version) says the same as your link above, but it is probably about wounds serious enough to need a second person to help. Happy to make this an answer if you think it is of enough interest.
    – michaeljt
    Jul 29, 2018 at 11:19
  • And the British manual does not say to use disinfectant on wounds; the German one says "only if a doctor tells you to". As per what Narusan wrote. (By the way, "event first aider" seems to be an English language equivalent of "Sanitätsdienst".)
    – michaeljt
    Jul 30, 2018 at 8:15
  • I have asked my physician today for advice on this. She told me that for this kind of abrasion wound rinsing cannot hurt and disinfection and covering would be good. So I will get myself a little bandage kit and Octenisept spray for the next bike trip. Jul 30, 2018 at 11:11

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