When the weather is hot, the whole body itches, so uncomfortable!

Allergic skin rash, when it is hot, especially in the sun, when sweating, it itches badly. Medication doesn't work. In this case, oral drugs must be used. It is recommended to take one tablet of loratadine every day for one month. If loratadine doesn't work well at first, consider taking half a piece of prednisone. After a day or two, the itching symptoms will be relieved. Stop prednisone and continue to use loratadine for one month.

I wish you a speedy recovery.