What are these? (photos)

always had good skin, retina micro, and now tretinoin .05 cream, which has worked for the last 4 years. recently Ive bn getting bumps on right side of face mostly, few on left, and forehead. i stopped eating dairy and it was clearing up but a week later the forehead 1s are spreading &staying not coming to a head just existing. i use salicylic acid facewash on the days i dont use tretnin, wash my face always. my insurance is out for another month so hopefully in the mean time someone can help.

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