If it is teething, this is what helped my daughter. Those teething rings were uselss for us, she hated them. I also didn't like the drug factor and we tried that orajel on us...and hated the feeling on ourselves, so I certainly wasn't going to give that to her. Here's what we did.
We wrapped up an icecube in a washcloth and tied it off with a hairbinder. We got just the icecube part wet and she'd chew and suck on that thing for hours at a time. When the ice melts, she stays hydrated so I didn't have to worry about her getting water, it was for little hands to hold because of all the extra washcloth material and it sort of soaked up all that drool so it help her clothes dryer. It was the only thing that worked for us in the teething department. Plus, if she chewed it, there were no chances of choking on ice chips. The washcloth was just enough protection from frostbite too.
We called it an 'icecube sucky', and when we would ask her if she wanted one, she'd always say yes. Even if it was in the middle of the night, it helped TONS. It was a soothing sucky thing that I think sort of reminded her of nursing or something. Comforting I guess.
Good luck.