I'm not sure if the unprotected sex is directly related... it's a possibility. Anyway, when you masturbate or have intercourse, try adding the use of a "personal" or "intimate" lubricant that is specifically intended for sexual purposes and see if that helps with the peeling and dryness.
i meant it was the first time having unprotected sex
i think it's overused. try not to masturbate or have sex at all for the mean time.