Dysport

Yes, this should resolve. A crooked smile after Dysport usually happens when the product affects the muscles that pull the corners of the mouth (depressor anguli oris, zygomaticus, or risorius) unevenly, either from injection placement or diffusion into a neighboring muscle. Since Dysport works by temporarily blocking nerve signals to muscle, the asymmetry fades as the effect wears off. Timing varies by dose and individual metabolism, but most people see improvement well before the full effect is gone, and it should be back to normal within a few months at the outside.

In the meantime, follow up with the injector who treated you. Sometimes a small, precise touch-up on the stronger side can rebalance the smile while you wait for the rest to fade. Avoid the temptation to have more product added broadly to fix it, since that can prolong the issue. If you're not already being followed by a board-certified physician experienced in facial anatomy, that's worth arranging for this and any future treatments.