Will facial sagging, volume loss and chin recession due to Botox be reversed after it wears off? (photos)

Had 80unit on left and 20on right masseter Botox. First time ever. Didn’t think i needed it but the injector recommended. A week after my smile was weird like I had a stroke but now the smile is a little better my face is loosing volume rapidly and my face is sagging, my acne scars are more Prominent and my chin even looks smaller like it’s receding backwards. Will this go back to normal after the Botox wears off? My forehead Botox is wearing off so will masseter wear off soon too? Help!