Ginger prevent many types "stomach problems,"upset stomach, gas, diarrhea, irritable bowel syndrome , nausea, nausea caused by cancer treatment, nausea caused by HIV/AIDS treatment, nausea and vomiting after surgery.Ginger is also a great hair conditioner. It makes hair more manageable, softer and shinier. Besides, ginger is a useful remedy for dandruff and dry, itchy scalp. It contains natural anti-inflammatory and antiseptic properties that help keep scalp healthy and clean.