Confirmation is a Sacrament of growing up. It helps us deal with a world expanding around us. God tells us two things that we need to know about growing up. The first sign is that a bishop lays his hands on our head. The second is that he rubs Chrism on our foreheads.
Chrism is a mixture of a mixture of oil and balsam perfume from fir trees.
The perfume covers any rancid smell from the oil. Let's look at the laying on of hands. It's a way of showing your approval of another person, a kind of congratulations. In ancient times a person might place a hand on another person's head or shoulder to say the same thing. It probably made you feel better for two reasons.