The goal of this clinical trial stydy : is to compare between the effect of pulsed high intensity laser and extracorporeal shockwave therapy on hypertrophic scar on post burned patients.
The main questions is it aims to answer is :
* Which is more effective on hypertrophic scar post burn Extracorporeal shockwave therapy or pulsed high intensity laser therapy? * Participants will receive the treatment for 6 weeks. * Assesment will be don before and after treatment.
The patients age will range from 20 to 45 years.
All patients will be free from any other pathological conditions or histories except hypertrophic scar.
patients will be selected from both gender.
All patients will have hypertrophic scars post burn injuries.
The patients who have open wound at or near treatment site.
The patients who have cardiac pacemakers or other implanted electronic devices.
The patients who have any significant health problem such as diabetes, circulatory
disorders or history of skin malignancy in the treated area.