I Have A Problem - Subcutaneous Hairs Under The Arms

Hello, everyone! I have a terrible problem. I will be very happy if you advise me or share your experience. So I have subcutaneous hairs under my arms. There are formations like balls. As a result, tangled lymph nodes are formed. Is this dangerous? The feeling is very nasty - it hurts. To prevent the smell, I put on a stick. I think that's the problem. Should I stop and spray only with deodorant? Has it happened to you? How to avoid clogging pores and subcutaneous hairs? Thank you in advance :)