Botulinum toxin interferes with the transmission of these substances, typically where the nerves and muscles meet. Researchers think that when the drug is injected into the muscles around the face, head and neck, it is taken up by the nerves and interferes with pain-associated neurotransmission.

Best known for its ability to reduce the appearance of facial wrinkles, Botox also has been shown to prevent chronic migraine headaches in some people. It is used mainly for those who have headaches 15 or more days per month.

Botox for chronic migraine consists of 31 injections in the head and neck every 12 weeks. Injection sites include the forehead, temples, back of the head, upper neck, and shoulders. Each treatment takes less than 10 minutes, and the injections are generally well tolerated.

Possible side effects and unwanted results include: Pain, swelling or bruising at the injection site. Headache or flu-like symptoms. Droopy eyelids or crooked eyebrows.

It can take as long as two to four weeks after the initial treatment to notice improvement in the frequency and severity of migraines. Results can last for 10 to 12 weeks, or sometimes longer. Most people receive Botox® treatments every three months for a year or more, until their migraine symptoms ease.

Between 10 to 50 Units of botox A forehead botox injection can require between 10 to 50 units needed in the forehead depending on the severity of your wrinkles. Allergan, the manufacturer of Botox suggests the amount of units that's recommended in the “five” sites of the forehead is 4 units.

Botox is considered safe overall. You should always go to a board certified dermatologist or plastic surgeon for Botox injections. You're more likely to experience adverse side effects if your injections aren't prepared according to FDA standards or injected by an inexperienced healthcare professional.

Botox injections are usually safe when you're under the care of a licensed and skilled health care provider. The procedure can result in unwanted results or even cause harm if it's given incorrectly. Possible side effects and unwanted results include: Pain, swelling or bruising at the injection site.

3-4 months Eventually, the action of the neurotoxin will wear off and the nerves will again be able to send those signals to the muscles to start working or contracting. In general, Botox lasts 3-4 months. There will certainly be patients in which in lasts longer, in that 4-6 month range, or shorter, in that 2-month range.

The results from Botox last anywhere between 2-6 months; the average result lasts about 3-4 months. Why does Botox eventually stop working? Your body makes new neurotransmitters all the time, so the “blocking” effect of Botox gradually wears off as these chemicals start circulating in your body again.

three to six months Patients receiving Botox for their forehead wrinkles notice effects for three to six months, on average. One of the benefits of Botox injections is that it can be repeated, unlike other cosmetic procedures. As such, you can tweak your dosage each time to achieve your desired look.

Risks are very minor with Botox, but just like any other medical or cosmetic treatment, things can go wrong. The short answer is that similarly to any invasive treatment or procedure, there can be side effects or complications. You may experience redness, bruising, bleeding or swelling.