For the past month or so i've had this small patch on upper lip that feels dry. it has flaked a couple of times. not red, no puss, doesn't hurt.

Skin check by MD: Crusted, flakely spots on the skin can be caused by many factors, the most common of which is a form of sundamage known as Actinic Keratosis. This is a precancerous spot that if left untreated may progress to a true skin cancer. Early detection and early treatment is how skin cancers are avoided/cured. Seek advice from a Plastic Surgeon or dermatologist.