My Daughter is 3 and a half year old, she is having high fever (till 104) from last 15 days. her fever comes down with medications(antibiotic, cough syruups - bricalyn, Tminic & Augmentin duo) but her fever came back after stopping medications, again started with medications , fever came down and was not there for 3-4 days but after 4 days, she got high fever. she is having cough and running nose, can you please help what could be the problem