You might try teething tablets. They work really well for some babies. You could also try orejel but be careful not to use more than the recommended dose. Since she chews on her burp cloth you could try wetting and freezing it.
My son always like the "bright starts teethe on me" ring and the "bright starts chill and theethe theether tubes". Those were the only ones he would ever chew on. He also really liked to chew on link-a-dos.
I don't know the actual name, that's what we call them. There the little plastic chain link thingy's. He chewed on those all the time!