hi, my nephew is around 4 year old. he is suffering from sever pain in his left arm. even he is not able to move it from last 3 days. but when we give pain killer he is able to all the motion till 3-4 hours. and then again pain attach on him and he stop doing motion. we have done some test like X-ray , blood test, nerve specialist but didnt found any clue.... please  he has been suffering from fever also from last week we had go for test like malaria , typhoid  etc but that also not any result doctor say its viral fever.give some suggestion its important....my e mail Id YYYY@YYYY
Hi, Thank you for asking question on Chat Doctor .from your history it appears he may be suffering from viral myositis. It will pass off in due course.Painkillers will cut down pain, hence manage with painkillers till the inflammation subsides. Hope this answer will serve your purposeless feel free to ask any more queries if requiredTake care Chat Doctor. V. Subrahmanyam MD;Disassociate professor of pediatrics