Can I use Retin-A at night and Rosiver 1% (invermectin) in the morning? (Photo)

I get large painful, persistent pimples that scar. i don't want to squeeze and I don't (anymore) but now that I stopped squeezing the pimple lasts weeks and still leaves a dark scar (you can see one above my lip from 2 months ago). Using Invermectin in the morning has worked great - I just use it on my nose and I have been using a Retin-A cream .05 at night everywhere but my nose. I would like to introduce invermectin to the chin area in the morning the to see if it helps there. Is this ok?

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