Dear Doctors For last 2 days , my fever is coming and going. What could be the reason for this? Background: 1- have travelled very frequently in last 7 days, 2 times to Mumbai and one car drive of close to 500km just after returning from Mumbai on Wednesday. 2- while driving that is on 19th October, have started feeling light fever, head ache because of driving for 16-17 hours due to very high traffic. Currently I'm not in town and will be back only by Sunday evening, so please suggest some immediate action that I should take, so that I can come back home after driving again for 500 kms. Thanks in Advance!