Raganp:

It is very common, and almost a defining characteristic of SFN that the pain is worse at night. Unfortunately, how to treat the pain is a difficult thing to figure out.

The only real way to treat SFN is to find and treat the underlying cause. I believe your other post indicated that you are considered ideopathic at this point, but that's often the diagnosis when the doctors don't want to "waste" any more time or money figuring it out. Sometimes you have to keep pushing to get the doctors to keep testing and looking for causes.

When you don't know the cause, I always suggest that the best thing you can do is to examine your overall lifestyle. Improve your diet, exercise to the extent that your condition allows, and reduce stress. Some neuropathies are related to vitamin deficiencies, etc., - and even when they aren't, many people find some relief by taking supplements. (There's a ton of info in this forum regarding supplements that may help.)

Beyond that, it comes down to medications to achieve pain relief. You can try over the counter pain relievers, but they generally don't work well for SFN (unless it is caused by some kind of inflammation). If you have limited areas that bother you, using Epsom lotion or a topical cream like biofreeze might help - but it's impractical if your symptoms are body-wide.

Then you're down to prescription meds. The front line meds for most doctors include anti-convulsants like gabapentin or lyrica - or anti-depressants. Sometimes short term use of sleeping pills helps if you are becoming sleep deprived. There are lots more things beyond that - but hopefully the less drastic options will work for you.