Fever with cold and chest congestion,No rash, active when no fever,in taking liquid. Initial 3 days of fever was high..Shot up to 102,was controlled by meftal especially during evening and mid night. Today is the 6th day, yesterday and today it shot 100.5...During afternoon and early mornig. He took sinerest, ambrolite for cold and Advent as doc suggested anti biotics(2more doses remaining). Should we wait one or two days more or should do blood test immediately?