Which disorders responded to PhotoMed’s new algorithm?


Hundreds of volunteers attended clinics and studies that aimed to identify disorders that might respond to PhotoMed’s non-invasive therapy.

The Instant Feedback System™ recorded events in real time to possibly connect dots among inputs, responses, and outcomes. The aim was to make PhotoMed’s algorithm more effective and efficient.

The new algorithm doesn’t work for everyone. However, improving function for about 1 out of 3 people is better than zero.

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Responses and outcomes, when the therapy worked, puzzled PhotoMed’s advisors. Many volunteers arrived with multiple sites of pain and impairment. The team expanded the duties of the Instant Feedback System™ to simultanteously track progress of multiple disorders in the same person. The methods came out of Silicon Valley’s playbook.

The advisors wondered:

  • Could different sources of pain interact in real time?

  • Would each site resolve singularly or in a group?

  • Are skin temperatures linked with perceived temperature, coldness, pain, or loss of sensation?

The answers to these musing and more will have to wait for others to acquire additional data.

The team ultimately solved the problem of too many clinical disorder names. They organized the disorders by the impaired innate function rather than by clinical name.

Consider that the International Association for the Study of Pain (IASP) defines pain “as an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage.” Note that the definition of the pain experience does NOT require an “ouch” factor.

Here is a partial list of disorders that responded to PhotoMed’s algorithm by the second visit.

The list is organized by functional impairment:


Sensory impairments

  • Loss of sensation in fingers or toes

  • Diabetic peripheral neuropathy (DPN)

  • Complex regional pain syndrome (CRPS or RSD)

  • Post-surgical pain

  • Post-chemotherapy pain

  • Neuropathy from other causes, such as stroke or spinal cord injury

  • Fibromyalgia

  • Sympathetically mediated (or maintained) pain, especially people who have benefited from a sympathetic nerve block or sympathectomy

  • Post-herpetic pain (shingles)

  • Phantom pain in limbs and reconstructed skin

  • Mirror-neuron synesthesia


Motor impairments

  • Loss of grip strength and movement

  • Lost range-of-motion

  • Loss of movement after stroke (therapy helps overcome acquired non-use)

  • Carpal tunnel syndrome

  • Muscle imbalance, i.e. scoliosis

  • Loss of coordination in gait & swallowing, and choreic movements from Huntington’s disease



  • Restart non-healing wounds at any stage

  • Accelerate slow-healing wounds

  • Diabetic foot ulcers and loss of sensation

  • Venous stasis ulcers, bed sores

  • Improve scars, keloids


  • Abnormally cold or hot hands, with or without pain

  • Thermoregulation, gut, bowel, and bladder function after spinal cord injury

  • Complex regional pain syndrome (CRPS or RSD)

  • Raynaud's syndrome



Please Tell Us Your Story or Ask a Question

Please share your story about your experience in a study using PhotoMed’s therapy and any improvements. Your follow-up information helps us understand how our therapy works for different disorders. You are welcome to ask questions through this contact form.

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