Together, we can shift the conversation about healing from impossible to measuring precisely when healing resumes.

By Allan Gardiner, Founder, PhotoMed Technologies

Recovery from Chemotherapy-Induced Neuropathy

By Allan Gardiner, PhotoMed Technologies, Founder


10-50% of chemotherapy patients develop neuropathies that frequently limit dosage and remain for life time. PhotoMed's therapy has restored protective sensation and relieved long-duration neuropathies from chemotherapy, diabetes, agent orange, and unknown causes.


Jerry entered Dr. Conard's program to learn to live with his horrible neuropathic pain in his hands (2 years) and feet (5+ years). He volunteered for PhotoMed's study to learn if his pain could be relieved. (William Conard, M.D. is the PI for the PhotoMed-sponsored study in Sacramento, California.)


Beginning with his first visit, Jerry could not imagine the improvements he achieved through PhotoMed's study.

Watch as Jerry emotionally describes an important activity, delayed for years, that he accomplished during the previous week (5th visit).

Viewers note: Jerry's emotional recall of events may be too intense for people who are currently experiencing intractable pain.

Video 1 - Jerry shares his feelings with Allan Gardiner during his 5th visit (at one month) as he describes activities that he could not do before participating in PhotoMed's study. (2:20)


Return of protective sensation

Loss of protective sensation in the feet is a leading cause of lower extremity amputations.

Previous study volunteers had achieved the return of protective or normal sensation in feet and fingers. Jerry's case was instructive for having sensation lost at different times, for different reasons, and for returning at different rates. Jerry also felt coldness pain in his right arm when the actual skin temperature should have been perceived as normal to warm (29C.)



Jerry had lived with neuropathy in his feet for several years before beginning 3 years of chemotherapy. His feet became over-excited with indescribable painful tingling and "electric" sensations. It would take hours to settle down every time that he changed the texture against his feet, such as when putting on slippers. The painful sensations were present even though the numbness meant that he could not perceive the texture or much of anything. The cause of his neuropathy in his feet remains unknown.



3 years of chemotherapy left him with almost no touch sensation in his fingers yet had horrible sensations that changed depending on what he touched. Jerry reported that, after his first or second visit, his shaving water now felt much too hot. The water was the same temperature that previously had not registered as too hot. Curiously, his perception of skin temperatures, such as cold feet, using his hands did not noticeably change.



Watch as Jerry describes his fingers resume feeling temperatures again during his 5th visit (at four weeks).

Video 2 - Return of protective sensation described during his 5th visit, Jerry describes that he could feel that his shaving water was too hot after the 1st or 2nd visit. The return of protective sensation is an important unrecognized safety issue. (1:00)


Jerry reported a weak return of sensation in his feet during his first visit. By his second visit, he began to feel 19 - 44 gm monofilaments at some locations on his toes and the ball of his foot. His sensitivity improved along with reduced neuropathic sensations. During his 3rd visit, he was able to feel a 5gm monofilament. Watch the testing procedure. Note that the measurements help make the therapy more effective and efficient through re-examination of the treatment parameters.

Video 3 - The return of protective sensation measured by monofilament testing during the 2nd and 3rd visits. His sensitivity improved to detect, from no sensation at the beginning, to 5gm by the 3rd visit. His neuropathic sensations continued to decline. (6:00)


3.5 Month assessment. Jerry is wearing shorts and a T shirt and remains comfortable. The coldness in his right arm remains gone most of the time. He describes how his fingers can feel fingerprints now, but a little tingling remains.

Video 4 - 3.5 month assessment. Includes his feeling that his right forearm was cold when it was 29C. (3:06)


   Back to Examples List

Updated: May 24, 2017



PhotoMed Technologies is a dedicated to finding non-invasive solutions to chronic pain and functional impairments.

Founded and funded as our family mission to help people with no path forward. We appreciate your donations and support.

Allan Gardiner


New Frontiers

PhotoMed Technologies' methods and equipment open new areas for pain, biophysics, physiology, neuroscience and other areas of research.

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PhotoMed Technologies envisions a future when collaborating clinics, including those rural and remote, can offer their patients the most current non-invasive solutions developed by passionate practitioners and researchers around the globe.


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PhotoMed's products are for investigational use only. Methods and equipment may be covered by issued or pending patents.