When the weather is hot and sweaty, the child's face turns white. What is this?

Hello, according to the description, the initial consideration is a sweat rash. Most of them are as tender as baby's skin. The outermost skin is rich in capillaries, and the stratum corneum contains moisture, chlorine, sweating and sweat gland stimulation, which causes skin allergies.

Suggestion:

Usually pay attention to keep your skin clean and pay attention to your daily diet. Eat more vegetables, fruits, spicy and fried foods rich in vitamins, and eat less irritating foods. Apply some compound vitamin B ointment properly.