Teething help

Kyleigh • It's a boy!🌱🍼🐻 Born: 2•17•16
My lo is 3mo and beginning to teeth. But the teethers I have are too big for his mouth and he doesn't understand the concept of chewing much yet he just used his pacifier for the grinding/sucking sensation. Is there anything to help him in this scenario, he needs something more tough than a binkie though. 
Haaallp! 😁