Over-the-counter AND Prescription medication?

[PianoPlayer08]

So after battling acne for years, and using many commercial acne treatments that didn't work, I finally decided to get prescription medication. I'm currently using a topical gel that has been working pretty well. At the same time...I tend to have oily skin when I don't wash my face, so I like washing my face using a face wash scrub. I also realize that a lot of the face wash scrubs contain salicylic acid which is an active ingredient in acne treatment. I'm concerned because I don't know if using both, the face scrub with salicylic acid and the prescription medication, will cause a negative reaction, prevent my acne from healing, or even heal my acne faster (in which case I'd be much happier). Can anyone tell me what I should do, please? Thanks!

P.S. The active ingredient in the prescribed medication is erythromycin.

[loiloi]

Hi. You're right, concurrent use of topical Erythromycin and salicylic acid may result in fragility of the skin. I use Sparkling Clean cleanser by Estee Lauder which controls oily skin without over-stripping. I use this in conjunction with my prescription acne gel (Differin) without irritation.
Occassionally, my skin becomes overly dry in the areas I apply Differin. I then use a cleanser by La Rcohe Posay, either Physiological cleanser or Effaclar H.
Eloise.