How far does hyaluronidase travel? Did it stretch my skin?

I recently dissolved some under eye filler and one eye is great and back to normal but the other is proving to be more difficult. It's the outer corner that won't dissolve. How far does hyaluronidase travel and is it possible the filler (not even .2 or 3 of a mill) stretched the skin and now it won't go back to how it originally was? Does the location have to be exactly precise to where the filler was placed?