My 2.5 month old is teething I believe (drooling, slight temp, hair pulling near his ears, sticking…

My 2.5 month old is teething I believe (drooling, slight temp, hair pulling near his ears, sticking his hand in his mouth, 30 min naps instead of the usual 3-4hrs, sometimes inconsolable (took him to the ER bcuz he was screaming at the top of his lungs for about an hour, I thought something was wrong with him))

only problem is he's to young for orajel, and his mouth is too small for a teething ring plus he hasn't grasp the concept of grabbing thing s to be able to put a teething toy in his mouth... any ideal what to use ?!?

any body knows where the first teeth cut at...I know they may not come in for some months, but I would like to know if I wanna apply pressure for some relief where am I to press top row, bottom row,front , back?!?