Talk to Dermatologist on Large Pimples/boils Filled With Abscess

Its been over a decade that I keep getting boil-like pimples on buttocks and in between them. I showed it to different dermatologists but nothing could help till I finally visited my GP for it and she asked me to stick to cotton undies. It has helped but I still keep getting boils on and off. Currently, I have around 10 of these on hips, between hips, tye back of thighs, and inner thighs. These mostly reoccur on the same get so big and painful that I can't resist using topical and oral antibiotics often. Attaching some pics here.

1. What is this issue? And what do I do to prevent these boils? I am so fed up as they don't let me walk or sit properly and now I have 2mo who I am breastfeeding.

2. Is there any way I can get rid of the scars on my hips (you can swe in the pic how bad the skin looks) which these boils have been leaving for over 10 years now? Please help