What is the reason why the face itches after the hot weather and sweating these days?

Sweat more, secrete more oil, and free dust in the air will easily stick.

Sweat stains contain a variety of salts and other substances, which are irritating to the skin. Individual sensitive skin will have erythema, acne and other reactions. It's not enough to wipe with a tissue. Just wash your face with water. You don't usually need to see a doctor.

Who sweats a lot and itches, just take a bath frequently [flashes of light]

Lack of water, you need to apply a mask for skin care and sun protection. Another possibility is allergies.

Are you allergic to anything?

I didn't clean it in the shower.

When the weather is hot, sweaty skin will be sticky and easy to get things, and the weather is hot, with excessive oil secretion and blocked pores, so it is very uncomfortable and itchy.

Fungal infection, it is recommended to scrub the skin more and not see a doctor.

When the weather is hot, there is a lot of grease and sweat secretion. You should always wash your face and keep it clean. If there are toxins in the body or eczema can't be photographed, acne will form. Pay attention to a light diet and keep it clean.

Probably eczema, or physical reasons. Some people's skin pores are thin and sparse, and their diet is greasy, which makes it easy for toxins in the body to gather in the epidermis and cause epidermal cell infection. To put it bluntly, it is similar to acne.