Hello, the temperature of 37.5 degrees is mild fever. Physical cooling therapy can be taken to restore the body temperature to normal. Fever is mostly infectious, mainly caused by pathogen infection, and gastrointestinal cold is mainly caused by virus infection.

Suggestion:

I suggest you keep your child warm, avoid catching a cold, drink plenty of water and have a light diet. At the same time, physical cooling therapy can be taken, such as wet compress on forehead, front of neck, armpit and groin with wet towel, so that the body temperature can return to normal, and oral administration of Mamiai, lactase and paracetamol for children can relieve symptoms.