Tell your friend to get this stuff and use it: Mario Bedescu Drying Lotion. This product is the best topical overnight treatment for acne. I don't know how to place a link for you but I will try at the end of this thread. Also a facial cleanser to use daily as well as a Toner after each wash. Apply drying lotion to pimples on a clean face via a q tip. Go to bed, wake up and the zit is gone. Don't shake the product in its bottle.
Drying Lotion | Acne Products - Mario Badescu Skin Care
Go look that up. I get mine at Nordstroms or it can be purchased online.