Botulinum toxin
Botulinum toxin is also used to treat disorders of hyperactive nerves including excessive sweating, neuropathic pain, and some allergy symptoms. In addition to these uses, botulinum toxin is being evaluated for use in treating chronic pain. Studies show that botulinum toxin may be injected into arthritic shoulder joints to reduce chronic pain and improve range of motion. Recent studies have shown botulinum toxin injected into specific intrinsic foot muscles to treat hallux valgus (bunions) and its associated pain.&lt;ref&gt;