A lot of pimples have grown on my face, and it still itches when the weather is hot. How is the treatment?

I suggest you wash your face with medicated soap to keep your facial skin clean and fresh. You can use some ointment for treating dermatitis and eczema, but you should pay attention to the pharmaceutical ingredients. Most of them contain hormones, which are not suitable for rubbing on the face, and there will be pigmentation. If it itches badly, you can take anti-allergic drugs, such as cetirizine and loratadine. It is best to find a regular doctor to see if it is acne or skin allergy. I wish you a speedy recovery.