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 ?