My son cut all 4 of his top center teeth at the same time, and ran a 100-101 degree fever for 2 days during that. If it had just been a fever, I wouldn't have done anything differently, but he was also very cranky, tired, and obviously in pain, so we went into sick mode and spent the day snuggling while he napped in arms. I gave him some tylenol in the morning, but then he was up and adam, acting fine, and I thought it would be better if he stayed low key, so I didn't give him anything else. He was pretty miserable, but as long as we were snuggling, reading books, and he was napping on and off, we got through it fine. I definitely think that fever goes with teething for some kids, but not always.