Botox is comprised of a bacterial toxin that prevents muscle contractions. There are different brands now such as Dysport and Xeomin which work a little differently from each other. After injection into muscle, botox blocks the signals from nerves preventing it from contracting. The most frequent use of botox is to cosmetically reduce:
- 1. Forehead lines
- 2. Crow’s feet
- 3. Frown lines
- 4. Bunny lines
Other uses include medical applications in squints, involuntary contractions around the eyes (blepharospasm) and crocodile tears (tearing eyes during eating).
Botox injections are usually done in the clinic and not very painful so local anaesthetic is not usually needed. It usually takes 7 to 14 days for full effect and botox can last between 3 to 6 months.
Occasionally some bruising can occur and very rarely, a droopy eyelid can result due to the botox diffusing towards the eye lid muscle so it is import not to rub the injected area for 12 hours. Patients who are pregnant or have a neurological disease should not have botox injections.