Are Botox Feet Injections Safe?

It is not Botox but the thicker hyaluronics injected into the ball of the feet in order to add more 'padding'.  Takes a lot of product and it tends to work its way out of position very quickly because of the immense amount of vertical pressure on the pillow of product.  You might look into Sorbothane inserts particularly for the ball of your foot as these are amazing shock absorbers for the pressure points of the feet. 

Injections with fillers into the feet can be done, but considered an off-label use.  Although hyaluronic acids, like Restylane, can be used, Radiesse tends to last longer.  

Botox is injected to prevent hyperhydrosis of the underarms, hands, and feet. You're probably hearing about hyaluronic acid or dermal fillers to areas of the feet to provide cushioning.