<s>[INST] My son 3yrs suffering from fever every two to three weeks.fever lasts 3 to 4 days.high fever with blocked nose.he attends playschool.very active...eats well.when fever comes he looses appetite for few days.doctors say it's viral infection.is it common to have fever twice a month. [/INST] hi YOUR KID IS HAVING RECURRENT RESPIRATORY TRACT INFECTIONS , WHICH IS COMMON IN CHILDREN ATTENDING DAY CARE CENTRES. He might also have a superimposed secondary bacterial infection , if if he had decreased activity while with out fever.Otherwise, just wait and give symptomatic treatment for fever and cold until he will attain immunity.Hope it answers your query and ready to help you further </s>