Hello dear,my name is dr,Dorina Gurabardhi.I understand your concern. Some of the most common causes of armpit lumps include: - fibrous tissue growth (fibroadenoma) -cysts or fluid filled sacs - allergic reactions to deodorant, antiperspirant, or soap - viral or bacterial infections Warning signs that may indicate a more serious armpit lump include: - gradual enlargement - no pain -does not go away Some advices that I can give to you are: -use warm compresses -use over-the-counter creams like bivacine cream -use pain relief medication like ibuprofen if needed Hope my answer was helpful,if you have any other question I will be glad to answer,thanks!