the use of incentive spirometry contributes to the patient’s pain and reduces the patient’s ability to perform important activities after CABG. This may be attributed to the fact that incentive spirometry takes a lot of time to be performed and may result in changes in muscle tension and activity in skeletal position, which may contribute to change in physiological parameters. Aim: evaluate the efficacy of localized cryotherapy on physiological parameters among postoperative cardiac patients. Design: Quasi experimental design was utilized. Setting: The study was conducted in cardiothoracic intensive care unit. Sample: A Purposive sample of 60 adult patients were included in the study. Tools of data collection: Two tools were used for data collection; Tool I Structured interview questionnaire, Tool II physiological parameters assessment. Results: There were statistically significant improvement in physiological parameters and return to normal associated with the use of incentive spirometry after cold gel pack application in study group compared to control group .Conclusions: Application of cold gel pack was effective for improving physiological parameters with incentive spirometry in patients post coronary artery bypass graft surgery. Recommendations: More research is necessary to examine the effectiveness of different types of localized cryotherapy, such as (ice pack, massage, and ice towel), on the incisional discomfort linked to incentive spirometry following CABG surgery.