FDA has reported adverse events after BoNT injection affecting nervous system far from initial site of injection such as speech disorder, nystagmus, restless leg syndrome, and even coma. Central nervous system involvement included 23.5% of serious and 24.9% of non-serious events (1).
Botox is injected directly into the muscles and does not typically come into contact with the nerves. However, in rare cases, the needle used to inject the Botox can cause nerve damage. This type of nerve damage is called peripheral nerve damage and can cause pain, numbness, or weakness in the affected area.
Serious adverse effects after cosmetic use of botulinum toxin include dysphagia, muscle weakness, and allergic reactions [22, 23].
While most side effects are mild, systemic effects, manifested by generalized weakness distant from the site of injection, have been reported.
FDA has reported adverse events after BoNT injection affecting nervous system far from initial site of injection such as speech disorder, nystagmus, restless leg syndrome, and even coma. Central nervous system involvement included 23.5% of serious and 24.9% of non-serious events (1).
Muscle Atrophy and Adaptation: After long-term Botox use, some facial muscles may experience mild atrophy due to limited activity. This can actually benefit patients who prefer a smoother look, as muscle activity that causes wrinkles is minimized.
Botulism is a rare and sometimes fatal illness caused by botulinum toxin. Initial botulism symptoms may include double or blurred vision, drooping eyelids, slurred speech, difficulty swallowing, and difficulty breathing.
Signs of nerve damage after fillers
Delivering stringent aftercare is also key, so your patient knows what signs to look out for and who to contact. Dr Lindsay informs, “Often a patient with a nerve injury will initially report a sharp electric shooting, burning, itching, tingling or a pins and needles sensation.
If the botulin toxin affects the obliquus capitis inferior muscle, the muscle that helps stabilize the C2, that vertebrae will rotate out of its natural position and can compress the vagus nerve and it can cause a pinching of the C2 nerve root which turns into the occipital nerve and give you occipital neuralgia.
UCL researchers have found that 80 per cent of Botox users suffer from side effects including headaches, dizziness, and brain fog.
Botulinum toxin-induced neuropathy is a rare and vision-threatening complication of BTA. In patients with recent injection of BTA who present with visual complaints, botulinum toxin-induced neuropathy should be considered.
Studies have revealed that botulinum toxin can also affect the CNS (Galazka et al., 2015) It has reported that Botox B administration resulted in memory malfunction and long-term decline of LTP formation in aged rats (Ando et al., 2002), and also intracerebroventricular (ICV) injections of Botox A and Botox B in mice ...
Among all 22 people, symptoms began a median of 3 days after exposure (range 0 to 20 days) and included symptoms near the injection site (e.g., blurred vision and ptosis after facial injection), dry mouth, slurred speech, shortness of breath, fatigue, and generalized weakness.
If you are in poor general health, your skin is very thick or you have existing muscle weakness in the proposed injection site, you may not be a good candidate for Botox. Patients with sensitive skin may experience an allergic reaction at the injection site.
No. Even after you stop using BOTOX, you will still look younger than you would have if you had never been injected. One study of twins found long-term BOTOX use led to fewer and less severe wrinkles in the long run, effectively slowing the aging process.
“Pillow face” occurs when too much filler is injected into areas like the cheeks, nasolabial folds (the lines from your nose to the corners of your mouth), lips, and under-eye area. This repeated overfilling can result in a bloated, round appearance that looks far from natural.
Celebrities often pick alternatives like Dysport, Xeomin, and Juvederm. These fillers add volume or reduce wrinkles differently than Botox. They're popular for their varying effects and durations.
Long-term effects
A 2022 review study found that people who regularly received Botox injections showed changes in their muscle composition, function, and appearance up to four years after their last injection. "If you didn't use your abs [abdominal muscles] for 10 years, they would waste away," says Mosahebi.
Because Botox is a neurotoxin derived from a harmful bacterium, your thyroid may be affected by the use of this product. When your body is triggered, your thyroid symptoms can worsen, often called a flare-up.
Yes, dizziness can be a side effect of Botox®, although it is very rare. If you experience dizziness after having Botox® injections, speak to your practitioner immediately.