Using rice water can help reduce hair fall by nourishing the scalp and strengthening hair follicles. Collect leftover rice water, apply it to the scalp, leave it for 15-30 minutes, and rinse. Use once or twice a week for best results.Using rice water can help reduce hair fall by nourishing the scalp and strengthening hair follicles. Collect leftover rice water, apply it to the scalp, leave it for 15-30 minutes, and rinse. Use once or twice a week for best results.