Can adding more Bellafill blend in my nasolabial fold? (photo)

I had Bellafill put into my nasolabial folds almost a year ago.The Bellafill on the right was injected higher to raise the marionette line because that side of my face is a little less developed than the left so it sags more. The Bellafill is visible and looks worse when I smile. The doctor recommended I buy another syringe of Bellafill so he could blend it in. Does this seem like a good option to help this case?