When I saw my friend getting Botox, they said he would give me several shots, but I only got one shot. It's been 4 or 5 months now, but I honestly don't know the effect. I don't know if it's right to just take one shot haha... Immediately after taking it, I was very swollen and had a throbbing hot sensation. It seems that for the chin Botox effect to be dramatic, it only applies to cases where the cheekbones are small and the chin is large.. haha.