My mom is suffering from fever from around 10 days. Symptoms are- felling chilled and trembling during fever with severe body ache and headache. Fever remains with 101 to 102 degree F. After taking zerodol p and microcef cv, fever get reduced and sweating occurs after sometime. She has also developed mouth ulcer and toungue ulcer now a days and unble to eat solids. We have done malaria, typhoid, Jaundice and urin test but it all came out -ve. Dont know what to do.Please help.