IRCT138903034011N1 IRCT 2012-05-17 Privait Effect of infrared radiation on the healing of lower extremity ulcers in diabetic patients To study the effect of infrared radiation on the healing of lower extremity ulcers in diabetic foot 2009-11-06 anticipated 50 Complete https://irct.ir/trial/4200 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. N/A Diabetic foot. Intervention 1: Infrared radiation to diabetic foot in case group: use of 250-W tungsten lamp, made by OSRAM Company in Germany, after washing up the ulcer in the routine procedure. Before repeating the dressing, the patient was treated by infra-red radiation, once a day and seven days a week. This was carried out in the following way: a thermometer was placed on the surrounding of the healthy skin to record the temperature of that point and to ensure that the temperature did not exceed 42 degrees centigrade. The distance between the infra-red source and the skin was 30 cm and the radiation time was 20 minutes. The radiation angle was chosen as vertical according to Cosinus Lamirt law in order to absorb the maximum radiation and then wet dressing was performed. Intervention 2: Routine dressing for control group: patient’s ulcer and its peripheral tissues were immersed in a sterile tub of saline for 20 minutes and then they were dried by sterile gauze and were dressed in a sterile way after being put in a layer of wet gauze. This process was carried out twice a day, seven days a week. In case the dressing was removed because of excessive discharge or wetness, the dressing was repeated.