Welcome to HCM,
It seems that you might have some infective foci or some infection spreads in the blood.
If there is local infection at the site of surgery, go for testing of pus for culture and sensitivity test.
If there is suspected infection in the blood then go for blood culture
and sensitivity test.
After reports your doctor will prescribe specific antibiotic medicines for long period to clear the infection.
Rule out diabetes
Ok and bye.