<s>[INST] Hello doctor My mother has a lump on the side of her forehead it started off as big as thumb nail and in 8weeks is golf ball size it looks like a pumpkin in shape and bleeds and has puss coming out usually in the night she had a biopsy last week and is due for surgery on wednesday hopefully what do you think it is .....H Hartley [/INST] Hi,Dear H HartleyThanks for the  query to My HCM Clinic.I studied your query  in details and understood your health concerns.-Cause of the forehead painful bleeding lump with pus discharge-a-In my opinion-this is -Infected Boil which grew in 8 wks time to Abscess on forehead,which has burst openI would advise -a-Antibiotics b-Tb NSAIDs prior to Surgery, to ease out the after recovery after Surgery.c-Incision and Proper Drainage is to be done by ER Surgeon.This advise would help you to plan treatment with you doctor.Hope this resolves your query.Wellcome for further query in this regard. Have a Good Day.With Regards </s>