Botox DO NOT cause droopy eyelid Ocational if the toxin is apply near the lateral aspect of eyelid or by excessive manipulation on the área after injection cause movement of the toxin to this area then cause drooy eye.Just wait the effect is temporarily Usually improve in the first weeks In severe cases consult Dermatologist because there are eye drops that can help
For facial botox there will be no contradiction but you should discuss that with your physician before the procedure for a complete history