Teething advice help 😭😴

Baby is 3 months. Definitely teething and very irritable. What’s killing me is he is waking up every hour of the night now in pain. He use to sleep 6 hours in a row. Now the most I get day and night is 1-2. Advice to help his pain and help him sleep better.

I’ve gotten 40 min of sleep all night. Every time I fall asleep he wakes up.

FTM and dreading how long this teething will last :(