Hi there ~
I understand your concern and that your glans penis
is turning pinkish and is becoming dry and with peeling skin. I would think that you need to consult a dermatologist
who can address your concern. I also think that cleaning is also a good idea as suggested by the doctor. I advise you to stop masturbating for a little while till the issue resolves. If it is also that your penis hurting while urinating may be due to a urinary tract infection
(UTI) or due to a sexually transmitted disease
(STD). In either case you would have to visit a doctor. If testing i.e. screening for STDs are normal and you do not have a UTI either you might have a benign or a malignant urological condition for which you need to visit with a urologist
. I hope this helps. Take care and have a lovely day!