How to handle 13.5 month old waking up at night

The past week, my son has been waking in the middle of the night, usually between 1-3 am and taking over an hour to fall back asleep. He’s currently teething, so we give him some Tylenol, change his diaper and feed him a little milk and then lay him back down. He spends over an hour trying to fall back asleep. For instance tonight he woke up around 1 am, and it’s been 1 hour and 14 minutes and he’s still awake crying. How would you handle this? He’s been fed, changed, given medicine so what else can we do at this point? I don’t want to be rocking him to sleep .