Prevent Nasolabial Folds Appearance After Botox?

This is a very interesting question. When Botox is placed in the crow's feet area, this causes the orbicularis muscle to relax. The cheek can actually descend, resulting in a deepening of the nasolabial fold. Especially when more and more Botox is used in an attempt to combat crow's feet wrinkles, this problem becomes more severe over the years. This effect can be counteracted by placing hyaluronic acid fillers into the nasolabial region, and often in the eye-cheek junction as well. But... more

I been Botox over 15 years and have never seen it result in the problem you are worried about.  Perhaps a more youthful rested appearing upper face may make one more cognizant of concerns related to the lower face?