For those looking for a mild treatment to diarrhoea: it helps to reduce the symptoms of diarrhoea and rehydrates fast and effectively. For use from 3 months old. Dioralyte Relief works by replacing the water and salts lost from your body when you have diarrhoea. It helps the watery stools return to normal. It contains pre-cooked rice powder and salts (these are sodium citrate, sodium chloride and potassium chloride). The powder is mixed with water before taking.