I Found a Lump Under My Armpit And It Isnt From Shaving

I found a lumpunder my arm about 2and half months ago
i didnt think anything of it
and now its starting to hurt. im not sure what to do. im a lil worried my
brother keeps scaring me. but its so small its like nothing ?
im not sure what to do .i dont want to go to the docs and he tell me its nothing
and i look like an fool but im just not sure .
i mean im 18 and im too youge to have canseR? or a tumor ? right ?

I had my son on January 4th 2008- about 3 months ago. I stopped breastfeeding my son out of my right breast about a month ago due to a cracked and bleeding nipple. After stopping the feeding, I got three pimple like soars, almost like blisters, on my boob. My son also developed the same sore on his chin. Then I got a rash in both my arm pits, but I continued to shave. About a week ago, I developed large painful bumps in just my right armpit- deep pimple like volcano soars. It started with one in the middle of my armpit and then 6 big bumps form in a half circle around that one. I have never experienced anything like this before and both my husband and I were scared. I went to the doctor and he said that after pregnancy the skin changes pH and that these soars are common. He gave me a bacteria cream to apply twice a day as well as antibiotics. My doctor told me to stop using deodorant and after applying the cream to cover my armpits with baby powder. To be honest, the baby powder is what eased my discomfort. So, anyone out there with this problem, just remember to take antibiotics once a day for 1 week (I don't like antibiotics, but when the soars burst it can cause staff infection if you don't take it), clean the area with gentle soap twice a day (I used the ultra mild top-to-toe baby wash I bought for my son), then cover the area with baby powder. I thought I would start smelling of BO, but with washing the area twice a day and using the baby powder, I never smelled bad. It's been one week since I last saw my doctor and the soars are almost completely gone. I think the bumps formed because I stopped breast feeding. Posted by Sofia

I am a 20 yr old female in somewhat good health condition, though I smoke cigarettes and have Asthma.

For a few yrs now about a week prior to my Period, I receive a small nickel-sized bump underneath my left arm and left arm only.

It isn't really painful but is somewhat bothersome when shaving or pressing against it.

What are the possibilities of this being a life-threatening disease and what could this possibly be?

hey im 18 years old and a male i woke up today with a big, red lump under my armpit my arm is hurting from it. can someone tell me what is it or what should i do

hey im 18 years old and a male i woke up today with a big, red lump under my armpit my arm is hurting from it. can someone tell me what is it or what should i do