<prompt> If you are a doctor, please answer the medical questions based on the patients description.hello, my son is 16 years old. His upper left teeth have been hurting and he is schedule to go to dentist for cleaning and check his wisdom teeth. yesterday he found a small pea size lump in his left armpit and is saying that it is very painful and hurts. i gave him Ibuprofin and that seemed to help for a short period of time. I am concerned...any idea?  <response>: Hi.it is best if you consult with a doctor, preferably a general surgeon, for medical and physical examination. Based from your description, it could be hi Chat Doctor. These lesions usually occur on the underarm, especially after shaving or plucking andor usage of deodorants with strong chemical contents. Hair follicles get infected. Inflammation and subsequent abscess formation occur. Medical proper antibiotic regimen and surgical excision or incision and 