Pharyngitis due to group (A) beta hemolytic streptococcus (GABHS) assumes a special significance because of the risk of subsequent rheumatic fever (RF) and chronic rheumatic heart disease (RHD) in the infected child. About 10-30 % of acute Pharyngitis is caused by (GABHS). About 0.3-3% of patients of untreated (GABHS) pharyngitis go on to develop (RF). The main goals in our study were to assess the effect of therapy by oral penicillin for 10 days versus long acting penicillin single injection 1.200.000IU for children <25KG and 600.000 IU for children >25KG in treatement of children with recurrent follicular tonsillitis by frequent estimation of antistreptolysin o titre (ASOT).