Prepare a thin cotton cloth. Fold it into eight layers. Afterwards, heat 250ml of water to 60-70 degree temperature and pour two teaspoons of salt to it. Let that dissolve and get a saline solution with 8% strength. Wash your forehead, ears and back of the head. Wet the cloth in saline solution and fix it on the areas washed. Lie at the same position for 20 minutes.