When undergoing electrotherapy, it is essential to use high-quality electrode pads, follow proper placement guidelines, and adhere to the device's instructions. Safety measures should be taken to avoid skin irritation or burns. It is crucial to consult with a healthcare professional before starting any electrotherapy treatment to ensure suitability and discuss potential risks or contraindications. Additionally, EMS (electrical muscle stimulation) therapy should never be used on the head, neck, or near the heart as this can pose serious health risks.