Welcome and thanks for posting your query to HealthcareMagic.
As per your history it appears to be the problem of "Recurrent sebaceous cyst".
Sebaceous cysts are the collection of cheezy material surrounded by a wall. The treatment is by excision of the cyst. During excision if any of the part of cyst or the wall is remaining can cause recurrence and infection in the area.
According to your history you have gone for 3 times for antibiotics and two times for excision and now presently asking for cauterization
of wound. cauterization do help in recurrent situations like this but I think it would be better to take a second opinion
from a good surgeon or at Medical College level where any one can get good advise at a very nominal cost. At Medical college level you visit surgery department and then can move forward according to the advise given.
I hope these information's will help you. If you have further queries I will be happy to help.
"Wish you good health and early recovery from the problem"
Dr Sanjay Kumar Kanodia