Please recommend a serum to get rid of small pimples on the chin.

With winter coming and the dry air, tiny bumps have started exploding on my chin. I have extremely dry skin, so I rarely get cystic acne. However, whenever I have my period or the change of seasons, these bumps pop up really badly on my chin. I've tried squeezing them out, but it only resulted in more scars, and I don't think I've found a product that is really good and works perfectly for me.

I've heard that products containing AHA and BHA are good for milia, but I'm not sure which ampoule or serum to use for the ones on my chin. Please share some tips from experts who know how to solve this problem. Since I don't have oily or acne-prone skin, simply using acne products doesn't work for me at all.