Yesterday afternoon I smashed the car door into my forehead (by accident lol) there's a bump & a cut. I still have a…

Yesterday afternoon I smashed the car door into my forehead (by accident lol) there's a bump & a cut. I still have a headache today, is it alright to take Advil? I don't feel like a trip to the Dr is really necessary...but Google said not to take Advil incase of a concussion, but for how long not to take It?