I have a warm sensation on the bottom of my right foot that comes and goes what could that be caused from?

Burning Foot. The following medical conditions are some of the possible causes of foot burning sensation. There are likely to be other possible causes, so ask your doctor about your symptoms. Diabetes, peripheral artery disease, peripheral neuropathy, claudication pain, sun burn, chemical burn, heat burn, peripheral nerve trauma, peripheral nerve compression, sciatica, cold, cerebrovascular accident.
This may be . A form of neuropathy; burning pain... I would visit a podiatrist for further work up.
Nerve. Entrapment. May be caused by shoe pressure. If this becomes constant see your dr.