Im A 19 Year Old Male, And I've Been Masturbating

im a 19 year old male, and i've been masturbating very rough and hard. i am uncut and i get tiny cuts around the outer layer of the foreskin, it stings, and it's going around my penis now cause how hard i masturbate. I let it heal 4-5 days one time and, i started to masturbate again and it came back. Do i need to wait longer for it to heal and get some spray?