Compare Ultrasound Assisted Cold Therapy and Lidocaine Injection to Treat Morton's Neuroma

Inclusion Criteria: * Between the ages of 18 and 80 years old * Magnetic Resonance Imaging (MRI) confirmed diagnosis of Morton's neuroma - Refractory (greater than 3 month) symptoms to multiple conservative management, including physical therapy, nonsteroidal anti-inflammatory drugs (NSAIDS) and foot orthotics. * No history of systemic inflammatory conditions such as rheumatoid arthritis * Able to give written informed consent - Subject has been on a stable dose of analgesic mediation (or not on analgesic medication) for at least 3 weeks and is agreeable to remaining on current regimen for the duration of the study. Exclusion Criteria: * Diagnosed complex regional pain syndrome (CRPS) * Pregnancy - History of intolerance, hypersensitivity or known allergy to lidocaine - Recent history of recent surgical intermetatarsal neuronectomy (within previous 6 months) - Coagulation disorder - Current infection * Intermetatarsal bursitis * Metatarsophalangeal joint instability/capsulitis * Metatarsal stress fracture * Lumbar radiculopathy * Tarsal tunnel syndrome * Frieberg's infraction * Painful callosities associated with toe deformities * Peripheral neuropathy * Diabetes mellitus and peripheral vascular diseases * Insufficient command of English to complete self-¬report instruments.