My LO is also teething and gets a low grade fever occasionally...we have given her frozen Avent soother pacifiers and I even got in a cool shower with her to lower her body temp. It did wonders and she seemed to like the idea of the water falling over her. I have also started her on puréed apples and gave her some after refrigerating and that also helped. Of course if you have not decided to start your LO on any form of solids then that may be out. Hopes this helps:)
My LO really liked chewing on a cold washcloth today. I also got some baby Orajel that seemed to help her. Just the motion of my finger very lightly rubbing the top of her gums seemed to relax her too (with or without the Orajel)