I am suffering from hair follicle infection (folliculitis n seborrhoa)

I am 18 years old and male
suffering from hair follicile infection (folliculitis n seborrhoa) on my HEAD. this is occuring again and again. USED Isozam capsule for 1 month,dalacin t lotion and konaz shampoo but no use. it finishes in 1 week but again erupts on my head.