Cut out a section of aluminum in the shape of your Forefoot and insert it into the front of your shoe. You can shape the aluminum by beating it with a hammer if you like. It you get any releif but still have problems then consult an Orthotisist about getting a Full Sulcus Orthotic.
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No matter where you're at... There you are... Δf:=f(1/2)-f(-1/2)