2. What to do when a pimple hurts or does not heal?
I have a “pimple” that has not healed or has been bleeding for more than 3 weeks. What should I do? Consult your dermatologist, because you must make sure that we are not dealing with a form of skin cancer called carcinoma.
Do a dermatology check-up if in doubt
https://skinpulse.ch/en/skinpulse-dermatology/dermatological-check-up/