Background: Burns remain a significant health problem throughout the world. It has a detrimental effect on the quality of life. Both hydrotherapy and low-frequency ultrasound had a beneficial impact on burn healing. Aim: This study aimed to compare between the hydrotherapy and ultrasonic hydrotherapy of a partially-thickness-burned patient. Methods: An experimental comparative study was conducted at the Alexandria Main University Hospital burn unit. Sixty patients were included and alternatively assigned into two equal groups of 30 patients in each group.The researchers used four tools for data collection. An assessment was performed after one month to evaluate the patient's progress. Results: Patients who received ultrasonic hydrotherapy had a higher median healing percentage score (83.3) of the burned area than those who received hydrotherapy (70.5). There was a significant difference between both groups where p= 0.000. In the fourth week of the follow-up, (53.4 %) of the hydrotherapy patients did not have pain. In comparison, 90% of ultrasound hydrotherapy patients had no pain, with significant differences between both groups at the second, third, and fourth weeks (p =0.000). Conclusions: Ultrasonic hydrotherapy strongly affects the burn-healing process. Furthermore; it reduced patients' pain severity Recommendation: Conduct further research to assess the effect of ultrasonic hydrotherapy on other types of wounds.