What's your opinion on my Retin-A Treatment for fordyce spot cluster on lips/vermilion border? (Photos)

Hi, I have fordyce spots on the vermillion border which have pretty much hidden my lip line. I went to a dermatologist last month and he prescribed me with Retino-A, to be put on the lips for a month, every night. I read up on Retino-A and have heard that it's harmful to ingest orally, so I haven't started my course as yet. Wanted to get a second opinion on this! Could you please suggest if C02 superpulse lasers can help in removing these fordyce spot clusters? I've had this for 10 years.