I have a couple of meth sores on my arm that have been there for the longest time; when I'm tweaking I cant help but scratch which i imagine is a common problem. At times when use is low these patches start to heal with intro of sleep and food into my routine but are slow to heal - direct result of the two elements just mentioned according to a doctor friend. I've tried all kinds of remedies (except quitting before someone points it out as an option....) to no avail until last week when in a moment of desperation I put Bonjella over the sores and within a few days of re-applying they have almost healed up (just for relevance I'm in a heavy use cycle right now). It stings like an absolute bitch the first few seconds after application but then has a decent cooling effect and after it dries leaves a thin layer behind that I suppose could be considered to be protective. It easily washes off too so you don't end up with tons of gunk on your arm. Hope someone might find this useful.