Problem with movement of Right Lip after Botox has to do with the Botox being injected too low in cheek
There is a pair of muscles called the Zygomaticus major and minor which lift the upper lip during expression and smiling. They attach to the cheek area, just below the orbital rim. When Botox is injected in the crows feet area too low, these can be affected, causing smiling problems. There is nothing that can be done to correct this other than making it a symmetrical problem by doing the same to the other side. I may take 3 months or so to get better.