Hello :),i read that if i have recently used other clindamycin or erythromycin containing medicines, there is an increased chance that duac once daily gel will not work,but i stoped using clyndamicine and erythromycin now.will duac work?

Treating acne depends on severity and what it looks like. Since you've already tried 2 of the first line acne medications, talk to your physician or a dermatologist for the best next treatment option for you.

Duac gel is a combination medication with Clindamycin and Benzyl peroxide. It is a prescription medication used to treat acne is more than 12 years of age. Though Duac reacts with 19 other medication, there is no significant interaction with topical erythromycin. Hence you can use Duac under care of your physician, it should work. Hope it helps.