My husband got a pilonidal cyst operation and again after few months he got recurrent boils on buttos filled with pus we gave antibiotic and warm compress it used to go away Recently 4 months back on his upper back scapula he got large carbuncle and it was operated and after 2 months we found some some boils which is starting of carbuncle and took antibiotic then it went away again now today there is a small boil without any pus but I can recognise it. , it is same as before carbuncle, is there any solution for this, not to return again