Botox was worth it: Like the results; need less over time

I've had botox several times (2x/year for 2 years) and haven't really had any problems, if administered by a skilled doctor with fresh product and in the right amounts. I have had some bruising (am prone to it), but I keep ice on the area and take arnica to help minimize the effects. I find that I need less over time, as there seem to be residual effects.