Hii Dr. my girl child is 1.5yrs....only one small bump has come....and it has been 10days since it has come underarm...no development nothing and no pain bt from last 2days she was feeling weak fever also there...here im attaching the photo ....plz give ur suggestions plzz

A. Puss could be building inside of it you actually need to get it checked with the doctor because I need to punch this thing and then they need to take out the infection out of this thing and then they can do the dressing with which it will help and sometimes fever also can happen because of the same situation