The most likely cause of pain on the bottom of the foot is pressure pain caused by long-term external friction and irritation. It is also possible that the pain is caused by some subcutaneous bruises that compress the nerves. In this case, it is recommended to choose to wear some loose, breathable shoes, and then do not wear uncomfortable shoes to prevent squeezing and friction stimulation, thus leading to the aggravation of symptoms. If necessary, you can also choose to use hot towels or hot water soaking to reduce the bruises by increasing the temperature.