Foot pain should really be seen by a good podiatrist.

But this site is very good, and may help you some:
Look around the site and you will find it very interesting.
Place your mouse over the circle on the foot closest to your issue and a potential solution is given.

https://www.northcoastfootcare.com/f...in-finder.html

Look around there. Sometimes pain in the instep is due to
lacing shoes too tightly...this site gives instructions on how to take pressure off the top of the foot.

But there are many many possible causes. From pinched nerves,
arthritis, Charcot foot (diabetics), stress fractures, tendon problems, spurs, etc.

For minor foot pain, try the over the counter pain patches called Salonpas. These may take down some minor inflammation.
But they do not really help serious issues, which might need medical help.
http://www.salonpas.us/salonpas.php
These are not expensive, and do help me now and then.