Discussions that mention tretinoin

Acne board

Hi everyone,

I am currently using Stievamycin Forte (tretinoin and erythromycin) Gel.
I have used it for two weeks and it seemed to be clearing my skin.
It felt tight on the face and worked pretty well.
It has seemed to stop working lately - getting more pimples (old pimples no drying up).
Is that even possible?
Could my acne (the bacteria) have learned to become resistant to the drug that quickly - in only two weeks?
I had used Stievamycin a few years earlier, and it didn't work that well.
Should I just go back to Clindoxyl (clindamycin) and see how it goes?