There are many reasons for this.I have seen this with Botox. Some responses last for 6-8 weeks and in some rarer cases the response is non existent.These groups of patients are referred to as Partial responders and non responders respectively.If your body has developed an antibody against the Botox Protein then your response is shortlived. Try changing to Xeomin which is a Next generation Toxin and has no protein molecule binding it.All the best
Probably not, as most likelythere is some movement from an area that was not fully blocked. In most cases afull block doesn’t look natural so we have gotten away from that. The area inthe forehead that is moving is likely to be from the lateral parts where it candrop your brows down if too much botox is placed. The crows feet often wrinklewhen smiling as your cheeks are raising up and wrinkling the skin. I wouldsuggest you go back and see the doctor who injected you as that will educatehe or she as to where you have your first signs of movement and that can be helpfulfor your next treatment. Good luck!