As soon as the weather is hot, my genitals are itchy. How is this?

Hello, according to the situation you described, the main consideration is vulvar eczema, which is mainly related to personal hygiene. Hot weather will cause vulvar itching.

Suggestion:

It is suggested that loratadine tablets can be taken together with external application of Shiduqing ointment. Pay attention to the hygiene of the affected area, don't scratch the affected area with your hands, and change your underwear frequently. Go to the hospital for a check-up if necessary.