As far as I know there isn't a way to directly heal one. You just gotta wait it out.
But a good way to make it not feel itchy is to put tiger balm on it, or you can use a bandaid!
Alcohol tolerance may lead to (or be a sign of) alcohol dependency
Smoking can affect the lungs and give you lung cancer. When someone smokes, they would inhale the smoke, causing the smoke from the cigarettes to go into your lungs.