my wife is 36 week pregnant she has rashes all over body which is very uncomfortable and she cannot sleep in night kindly suggest what can I do to help her.

Take her to the gynaecologist.

BINDULIKA TYAGI Dr Shital Punjabi Dr Jayanti Kamat Dr please help on this question

According to Gynec advice, please put her on Antiallergic (Levocetrizine or alike)tablets.
Apply good emolient on skin.