What causes frequent recurring boils in the armpit and genital areas?

This usually represents colonization of a persons body by staph germs, often located in the moist area of the nasal passages. Transfer from nose/face to other sites where a person touches at random plants the germs which invade hair roots/cause pustules/abscesses.

Hidradenitis is suggested by location and chronicity, believed to be an inflammation of the sweat glands. Treatment is individualized, involves sometimes cautious use of antibiotics, best would be to confirm a diagnosis with your doc and start treatment based on findings.

It is generally Staph infection of hair follicles and sweat glands. It is imperative that you see a doctor as you would require antibiotic treatment. Since the infection is often deep seated, if may take a long course. If you let it fester, it may require surgical removal of affected tissues. Wish you good health!