Brief Answer:
chemical peels with oral and topical medications
Detailed Answer:
Hello dear,
Welcome to healthcaremagic.
I have read your query and understood your concern for your sis in law.
For active and pus forming pimples , she may need
oral antibiotics like tab doxycycline, minocycline ,
azithromycin.
Additionally topical medications are advised like clindamycin gel in the morning and
benzoyl peroxide 2.5 percent gel in night time.
Sometimes , hormonal changes are implicated in causation of pimples. Since she is newly married , so likely pimples are getting prevalent for the same reason.
But care is to be taken while taking oral medications. As once if she conceives, oral medications have to be stopped.
She can also go for chemical peels along with the above mentioned treatment by an experienced
dermatologist.
I will also advise to avoid hair oil application and oily food in diet.
Dont squeeze or pop the pimples, else it may leave scars.
I hope it helps.
if you have further questions, you can ask me.
stay healthy.