Try Thriveco foaming facial cleanser, it's hydrating. Lack of hydration causes itching mostly or the facewash you are using doesn't suit your skin.

For every weather I used ThriveCo's Hydrating Facewash. Why I like this Facewash is because it contains Hyaluronic Acid and even after multiple washes it doesn't strip away natural moisture of your skin.

In hot weather, dress in loose, lightweight clothing that wicks moisture away from the skin. ... In hot weather, limit physical activity. ... Keep your sleeping area cool and well ventilated. Avoid creams and ointments that can block pores.

Isha, Apply a cold, wet cloth or ice pack to the skin that itches. ... Take an oatmeal bath. ... Moisturize your skin. ... Apply topical anesthetics that contain pramoxine. Apply cooling agents, such as menthol or calamine.