Hey everyone,

This morning I've noticed that I've got a swelling in my armpit that feels like a hard lump. It's not painful or tender at all and it doesn't seem to move. I am scared it's something serious and going to the worst conclusion, but a week ago I had some red patches show up under my armpits (as well as some scaly patches elsewhere) I was recently told I might have a fungal skin infection and was given some antifungal cream to try and get rid of it. It hasn't done anything for it though despite applying it twice daily, and so I'm wondering if I was misdiagnosed.

However, how likely is it that the swollen lump is due to an infection rather than something like cancer? I have no family history of breast cancer. I'm 31 years old.