good day everyone. 22 yr Male here. this has been in ongoing problem with me for a while now. maybe 3-4 years now. But just recently it has gotten quite bad. It seems whenever i use deoderant i develop enlarged lumps under my right armpit. The funny thing is that it only occurs in the right arm. I stop using deoderant and the lumps seem to subside within a week or so. Its really not only frustrating me but now is concerning me a bit. I would definitely have already been to the GP, but currently have no health insurance. Just wondering if anyone might have an idea to what this might be. Just really worried it might be cancer.