Hello, as I have read in many forums comic reviews and I as to the veracity of some doubt, I ordered and tested EVERDRY because of my strong shit problem. It probably seems to be that many have read the package instructions carefully and not just the stuff as "smeared" under the armpits. For this reason, probably occurred more frequently than normal for symptoms such as itching or stinging. It is even on the roll-on deodorant: "thin, fix and before bedtime on the to care of skin Apply let it dry pause After a maximum of four nights of the application and thereafter as required (ie after re-entering the excessive sweat flow) each for one night again... Apply. " It is also important that the indications do not have sweaty but dry. Furthermore, one should apply the shaving means NOT shortly after, although the manufacturer says that this was wrong. By adhering to these things, you reduce the risk of itching or stinging skin. I'm testing it now for about 1 month and I have to say that it works for now. I've found that the "thinly" is very important. That's why I after I have applied to the roll-on deodorant Everdry under the armpit, again well spread by hand (hand washing not forget;)). Despite the careful handling, it came so far 2 times to itchy skin at night of treatment, where I would have liked me gekratz shoulders bloody. Even the jump under the armpits I had to experience once and it's really uncomfortable. I suppose this is not frequent side effects but in buying, because I had to go to the part 3 times a day my shirt, because it was pretty uncomfortable inner Uni to sweat so. I have to say that I have previously tolerated no deodorant with alcohol, which I can now use in addition without any problems. It has until now never discolored a T-shirt, while some reviews on the internet. Therefore my conclusion 4 star. 1nen withdrawal because of side effects sometimes occur. Hope I could help you.