Hello, I just read your query. * See in babies constant fever may have many reasons. You did not mention here that have you ever performed any blood investigation and urine examination. *Because urinary tract infection is one of the most common cause in babies behind fever. * In blood examination you can ask your doctor about Total leucocyte count( if it is raised it will indicate about infection in body), CRP(it will also indicate acute infection), widal test( for typhoid). If you already performed all tests and all are within normal limit. *Then I would advice you to go for an ayurvedic medicine named Giloy ( tinospora cordifolia), you can take fresh giloy if it is available nearby you and make juice of its stem and give 5ml of its juice twice a day with water to your baby. If your baby does not find its taste good then you can add sugar or honey in it. If fresh giloy is not available then take dry giloy. Add some giloy in one glass of water and half water remains, then you can give it to your baby in two parts. Giloy is very helpful in curing fever. * Whenever fever is there, do sponging with fresh water. Ice water sometimes cause shivering in baby, so do whole body sponging with fresh water for 5 to 10 minutes as it will also help in lowering fever *Give him fresh fruits and vegetables, juice, soups, liquid and semi solid diet as in fever all these things are easy to digest. * I hope you are satisfied with my answer and find it helpful. Thank you.