<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, I am a 30 year old male. 6 2 and about 235lbs I have about three spots on my right side that feel tender like a bruise. I have had the tenderness for about two or three weeks now. I can also feel like a pea sized lump under each tender spot. Nothing visible. Any Ideas on what this may be?  <response>: Hi I am Chat Doctor and I will help you with your problem have gone through question. Need further information to reach a diagnosis-Duration of the swelling in daysweeks?- When it got painful?- Can a skin move over the swelling? If it is of shorter duration, it is most likely boilfolliculitis. If the swelling was present for some time, and now got painful it is most likely an infected sebaceous cyst. If such a patient walks into my clinic I prescribe tab Augmenting amoxicillin and Slavonic acid along with paracetamol 500 mg 8hourly. Incision and Chat Doctor. 