Effect of Transcutaneous Electrical Nerve Stimulation or Acupressure on Pain in Patients With Head and Neck Cancer

This clinical trial aims to evaluate the effectiveness of transcutaneous electrical nerve stimulation (TENS), acupressure intervention, or standard care (control group) for pain management in participants hospitalized with head and neck cancer. This study aims to answer the following questions: * Is TENS or acupressure intervention effective in reducing pain in participants hospitalized with head and neck cancer compared with the control group? * Does TENS or acupressure intervention improve psychological distress (measured by the Brief Health Inventory (BMI)) in these participants? * Does TENS or acupressure intervention improve the quality of life of participants hospitalized with head and neck cancer? Researchers will compare the effects of TENS, acupressure, and standard care to assess the effects of each group on pain, psychological distress (measured by the Brief Health Inventory (BMI)), and quality of life.