Drink plenty of water. Rinse your mouth frequently with water, Magic Mouthwash and moisturizing gels (your doctor will recommend what to use, and your pharmacist will prepare it for you to have on hand when chemo starts). Gargling with Tea Tree Oil (from health food store) and water. Gargling with a solution of baking soda and water. If you don’t have mouth sores, you might be allowed to use ultra-soft baby toothbrush; soften it in hot water. Ask if Water-Pik (personal oral cleaning system) is allowed (regular toothbrush and dental floss are forbidden). Apply moisturizing lip cream frequently. Suck on tart lemon candies or hard mints to produce more saliva (rinse with water frequently to avoid cavities). Avoid or limit coffee, tea, alcohol, colas. If possible, see a dentist before chemo starts for cleaning your teeth and fixing any cavities.