How Does Botox Work
How Long Does Botox Last. The wrinkle preventing effect of Botox lasts for between three to six months. Repeated injections can weaken muscles with subsequent treatments lasting for longer periods.
Bruising can occur around the injection site, and occasionally if a blood vessel is damaged, a patient may get "black eye" bruising. The use of an ice pack before and after botox injections will minimise any bruising. A temporary drooping of the eyelid may occur.
Forehead lines, frown lines, eye wrinkles and crows feet are caused by muscle contraction and can all be treated with Botox. The full effects of Botox injections can be seen in 5-7 days. Results depend on the severity of wrinkles and the strength of muscles treated.