Treatment of Spasmodic Dysphonia
There is currently no cure for spasmodic dysphonia; therefore, treatment can only help reduce its symptoms. The most common treatment for spasmodic dysphonia is the injection of very small amounts of botulinum toxin directly into the affected muscles of the larynx. Botulinum toxin is produced by Clostridium botulinum, the same bacterium that occurs in improperly canned foods and honey. The toxin weakens muscles by blocking the nerve impulse to the muscle. Botulinum toxin injections generally improve the voice for a period of three to four months, after which the voice symptoms gradually return. Reinjections are necessary to maintain a good speaking voice. Initial side effects, including a temporary weak, breathy voice and occasional swallowing difficulties, usually subside after a few days to a few weeks. Botulinum toxin will relieve symptoms of most cases of adductor spasmodic dysphonia and is helpful in many cases of abductor spasmodic dysphonia.

Behavioral therapy (voice therapy) is another form of treatment that may work to reduce symptoms in mild cases. Other people may benefit from psychological counseling to help them accept and live with their voice problem.

In some cases, augmentative and alternative devices can help people with spasmodic dysphonia to communicate more easily. For example, some devices can help amplify a person's voice in person or over the phone. Special software can be added to a computer or handheld device such as a personal digital assistant (PDA) or cell phone to translate text into synthetic speech.