It seems that you are having pyoderma
It is relapsing in your case.
It may be due to poor health,poor immunity or poor nutrition.
You consult dermatologist
to have firm diagnosis and the reason of it.
He will advise array of investigations.. To rule out DM,HIV,anaemia
, immunocompromised conditions..etc
Then , proper treatment may be advised.
Local and oral antibiotics
,dettol liquid bath and nutrients would improve your condition.
I hope you got my answer.
Dr. Ilyas Patel MD