My son is 7month old..for last few days he has temperature on his forehead..which reads 38.1 37.9 when checked through infra red gun..within 3 to 5min it will drop to normal..temperature is only on forehead..is seen mainly during evening...here temperature is too hot ils almost 32 but feels like 36..he sweats a lot especially his head as he has lot of hair..is this tenperature due to hot weather? Or is it due to teething? Bcz he is lot more fussy and irriated and puts everything inside mouthnow a days