My 7 month old just cut her first tooth a couple of weeks ago, but the doctor says her gums are all red and swollen, so more must be on the way. We went through about 3 nightmarish weeks where she didn't sleep, cried, was gassy and had difficulty eating. I sympathize BIG time.
What helped my daughter was Tylenol, and Hylands teething tablets. I followed the directions for on the label for if your child is exceptionally fussy---the tablets were a lifesaver and worked much better than the orajel swabs I had been trying before.
I also switched to California Baby Calming bubble bath and added lavender and vanilla oil to her baby cream when I moisturized. I don't know if that made a big difference but at least I felt like I was attempting to help on all ends.
I also started using Gripe Water along with the Zantac that she already was on for acid reflux, before her meals. I do think the Gripe Water helped some. For some reason, the teething seemed to aggravate her gassiness/reflux. It must have to do with all the extra saliva and drool.
A last thing I did, in my no-sleep haze and desperation, was share an Italian ice with my daughter. She seemed to enjoy it and I think it eased her sore gums some. If nothing else, it distracted her during the crankiest part of her day at the time.
Hope that helps some and good luck for the next few weeks....