Hi, thanks for your query.
I shall try to clear your doubt regarding advantan.
Advantan is a steroid cream, and we also know that if steroids
are used on face, it can cause acneform eruptions so we do not recommend it for acne but since steroids have an anti inflammatory effects, it has been recomended to you to be applied on the papulopustular lesions to reduce the redness
Secondly it is to be used for only first five days, it wont have any side effects so you may use it as advised by your dermatologist
Be careful to apply it only on the red inflamed areas.
Hope this solves your query.