That’s good that the pain is gone, now see if he needs a ankle brace or ankle wrap for extra support, assuming nothing is broken. Then after a few days ease off on the Tylenol. Hope that helps, call his pediatrician if you have any concerns.

Tylenol is very dangerous as it can cause liver damage. It should not be used long term nor in high doses. This needs to be stopped; if he is unwilling you need to get a professional involved.

Acetaminophen (Tylenol) is not considered to be addictive nor do people usually become dependent on it. One can develop a habit or routine, however, due to some other need, however.

Plain Tylenol is only dangerous if her takes more than 4 extra-strength tablets a day. If, however, it's Tylenol #3 or #4, that contains codeine and is truly addicting (plus it could lead to liver damage in large amounts). But the codeine stuff is prescription-only unless he gets it illegally.