Several experts onhere have told you to release it so release it. if it is sick you have no clue or resources to take care of it without causing it more stress which could make it sicker. they have provided you with links. It is a wild animal. put it back because you dont know what your doing. if you found a lion cub wondering around would you bring it home or help it get into a sanctuary where properly trained people could rehabilitate it...same goes for the chameleon