#AskTheExpert Hello doctor, My 3.5 year old daughter is suffering from fever. Same pattern of fever was observed two months back. the fever starts mild, gets worst to 102-103 degF over a week when measured in armpit. afterwards it is gone for a couple of days and returns and stays mild around 100 definitely F for 3-4 days. total fever duration is 12 days including the couple of no fever days. what might be possible reason? I am fearing worst - can this be blood cancer?