Like any other medication, Botox, or botulinum toxin can have numerous, more or less common side effects, which vary depending on where it is applied. The first one to consider is a possible allergic reaction that can cause different symptoms: swelling of the face and throat, difficulty breathing, hives, wheezing, etc.
Saving allergy problems, side effects usually occur in the first few days after application and usually last a short time, but sometimes can prolong for months or longer.
In the face
Some of these effects, especially in the field of aesthetics, are due to an incorrect application of Botox, since it must take into account the facial expression and a puncture in the wrong place can cause a bad gesture or a change in the expression facial, since what is being done is to block the muscle in a particular position. Frequent examples are:
- The drooping eyelid or facial muscle in which it applies occurs.
- You can not completely close the eye.
- That excessive tearing occurs or, conversely, dry eye syndrome
- Corneal damage
- Less frequently, dizziness, weakness of facial muscles, etc.
- When used to treat migraines, besides those already mentioned, may occur:
- Muscle or neck pain
- Muscle spasms
- Pain at the site of application, etc
- Neck and shoulders
In this case the most common adverse effects of treatment with Botox are difficulty swallowing and muscle weakness and pain, but may also occur:
- Throat irritation
- Loss of skin sensitivity
- General discomfort
- Dry mouth
- Drowsiness, etc
- Side effects of Botox
- Bladder wall
When you used to treat urinary leakage by overactive bladder the most common side effects that occur are infections of the urinary tract and painful urination after the injection, which in some cases can be extended to the inability to completely empty the bladder, including urinary retention, hematuria, and frequent urination during the day.
If the treatment is performed in patients with spinal cord injuries (paraplegics), in addition to urinary tract infections and urinary retention may arise:
- Constipation problems
- Sleep disturbances
- Muscle spasms
- Bladder diverticula
- Feeling tired
- Painful urination after the injection
In the treatment of axillary hyperhidrosis adverse effects of botulinum toxin, in addition to pain at the injection, can be the following:
- Hot flushes
- Increased sweating in the armpit
- Lumpiness in it
- Bad smell
- Hair loss
- Pain in hands
- Swelling and redness, etc
However, the prospect of botulinum toxin, in addition to those already mentioned, include a number of adverse effects have been reported on occasion:
- Inflammation of deep layers of the skin
- Nerve damage (brachial plexopathy)
- Voice problems and speaking
- Fall of the muscles on one side of the face.
- Chronic disease affecting the muscles (myasthenia gravis)
- Difficulty moving the arm and shoulder
- Seizures and fainting
- Increased eye pressure
- Blurry vision
- Difficulty seeing clearly
- Decreased hearing
- Noises in the ear
- Dizziness or vertigo
- Heart problems including heart attack
- Aspiration pneumonia
- Trouble breathing
- Abdominal pain