1yr old Hurt throwing a fit

Joby
So my son is one and does this thing where he gets mad and lays his head on the floor like imagine a baby sleeping with his butt up. Like that and he just drags around for a while and he hurts himself sometimes if he throws hims self on the floor hard you know. Well today he did that cause I said no to him touching my head phones cause he will drown them in drool and he did that fit thing and hit his mouth on the floor and busted his lip a bit. Now my question is when this happens do you comfort them right away or just let them be hurt cause they were being a brat. I'm not sure how to handle these things. Granted I did pick him up after like 30 seconds.