Girls, hi. My son has been crying with snot running down his face and…

Girls, hi. My son has been crying with snot running down his face and biting me in the face...and there was this wild beast standing there, I swear on my teeth and it's been going on for three months now. But today was some kind of trash, I thought I would lose my mind and cried looking at how he was suffering. Tried all methods when he cries really hard, I smear gel Kamistad (without lidocaine) on him. When teeth hurt so much can you cry like that ??? I even calmed him down for half an hour ?