Wat do we do if low grade fever develops with lethargic afta 2 courses of antibiotic both iv n oral taken.d fever initialy settled afta both d course?

See an ID doctor: You have a potentially very serious medical situation and should not let this progress further without a full detailed evaluation by an infectious diseases expert. I can think of numerous explanations which might exist here, none of them good. This may not be infectious. Compile a full list of all symptoms and bring your medical records with you when you go. Good luck. Hope this proves benign.