It will include 34 patients with chronic neuropathic foot ulcer from both sex. They will receive He-Ne LLL for chronic neuropathic foot ulcer with pulsed wave form, visible ray, wave length of 632.8 nm, peak potency of 30 mW, (Laser -HTM). The application time will be 80 (4 J/cm2) seconds. The application will be 3 sessions /week for 4 weeks on the sole of the foot + Conventional traditional treatment.

It will include 34 patients with chronic neuropathic foot ulcer from both sex. They will receive conventional traditional treatment (regular sharp debridement of calluses surrounding the ulcer, use of walking or total-contact casts for off-loading and regular moist dressing patients will be instructed to use only sodium chloride (saline solution 0.9%), regarding the daily asepsis of the ulcer).

Patients in the experimental group will receive treatment with LLLT. The ulcer bed will be irradiated locally with red light (660 nm). The ulcer size and its depth will be used as the basis to calculate the duration of exposure needed to deliver 3-10 J/cm² for 15 to 20 minutes. The application will take place in 3 sessions per week for 4 weeks. Each patient will be asked to lie in a supine position with the ulcer easily exposed to the laser beam, and they will be instructed to wear laser glasses and avoid looking directly at the beam until the end of the session.

The length of the ulcer can be precisely measured using the Imito Measure application. By utilizing a specialized marker for calibration, the app allows users to trace the ulcer's longest dimension. After capturing an image, the app calculates the length automatically, providing an accurate measurement.

The width of the ulcer is measured in a similar manner using the Imito Measure app. Users trace the widest part of the wound, and the app, after calibration with the marker, determines the exact width from the captured photo.

The area of the ulcer is calculated by encircling the entire wound boundary using the Imito Measure application. The app uses the calibration marker to ensure accuracy and then automatically computes the total wound area. The Imito Measure application has been scientifically validated as a reliable alternative to traditional wound measurement methods, such as wound rulers.

It can be measured by using Syringe method by injecting saline into the wound until it overflows from the wound and measure the amount of saline.

Samples of venous blood from the cubital vein will be taken from each patient. Collected blood samples will be transferred into a test tube pre-fabricated with an anticoagulant. The blood samples will remain in the test tubes for about 30 minutes and will then be distributed to a biochemical laboratory, where they will be centrifuged at 6,000 rpm for 10 minutes. The serum will be separated from the test tube and transferred to an Eppendorf tube. All serum samples will be stored at -80°C until complete analysis and measurement of IL-6 levels. The IL-6 level in the serum will then be determined. Additionally, fasting blood sugar levels will be measured to assess the stabilization of the condition.