You can choose either relaxing or activating treatment program. Depending on the program, treatment eases muscle tension, pain, headache and symptoms caused by stress and insomnia. Read the manual before starting the treatment. Treatment is not suitable, if you have acute inflammation, acute blood clot, active cancer, flu and fever, pregnancy, spinal disc herniation on acute phase, serious ophthalmopathy, if you have recently been in open surgery or otherwise at risk of bleeding. Do not use Neurosonic if you have been vaccinated within 24 hours. We recommend drinking water after the treatment.