Lid ptosis, or drooping eyelid, can occur when Botox spreads beyond the intended injection site and affects the muscles responsible for lifting the eyelid. This can result in a temporary drooping appearance. However, skilled practitioners take precautions to minimize the risk of lid ptosis by carefully targeting the intended muscles. This can lead to a temporary imbalance in facial expressions. However, experienced practitioners strive for symmetry and balance when administering Botox to minimize this risk.