After the application, the skin is more sensitive to external factors (heat, cold, UV light). Therefore, it needs to be protected for a few more days after the application. On botulinum toxin application sites, skin massage is prohibited for five days.
During the botulinum toxin application, unwanted muscles may become paralysed which is manifested as saggy eyelids, mouth corners, and the like. These undesired effects occur rarely and usually go away within weeks. However, such complications may require additonal botulinum toxin injections and other kinds of treatment. During the application of botulinum toxin, temporary or permanent damage of deeper structures – veins and nerves – can occur.