Reflexology is a form of massage therapy. The idea behind reflexology is that there are reflex areas in your hands and feet corresponding to every part of your body. Applying pressure to these areas leads to healing. There is no clear scientific evidence that reflexology is effective or explains its mechanism. Nevertheless a recent study suggests that chronic sinusitis may respond to this form of massage therapy. For sinus disease and nasal congestion, daily massage on the tips of the fingers and the toes with the thumb and index finger for 20 - 30 seconds is usually enough force to relieve some discomfort. There is no current certification for practitioners of reflexology.