One of my friends get pregnancy rash all over her body from face to toe. Right now she is 6 months old. How should I give her advice?

Your friend is a 6 month old baby? I hope you meant 6 months along. :) Pregnancy rash is known as PUPPP (pruritic urticarial papules and plagues of pregnancy). Unfortunately, there is no known cause or cure, but the good news is that it will likely subside after delivery. You can get her some emollients to ease the itch. Oatmeal based creams, cool compresses and aloe vera may help to soothe her itch. http://pregnant.sg/articles/pregnancy-rash-puppp-rash/

Sorry to hear, but there isnt anything much which can be done. Except for keeping the area dry and cool. Try using coconut oil to keep the skin moisturized.

There's really nothing much to do as it's a hormonal reaction. Dress light and remain in cool environments so as not to aggravate the rash.

thanks

Ask her to see her ob/gyn for a regular check up