Yes, neurotoxin injections have various medical applications beyond cosmetic use. They are commonly used to treat medical conditions such as chronic migraines, cervical dystonia (neck spasms), hyperhidrosis (excessive sweating), and certain movement disorders such as blepharospasm (eyelid twitching) or hemifacial spasm. In these cases, neurotoxin injections help alleviate symptoms and improve quality of life for patients.