Many medications can cause dry mouth, including drugs for pain management, depression or physical disorders in general, allergies, urinary incontinence, and high blood pressure. If you are on the medication long-term, ask a doctor about alternatives or a lower dosage. Your label may use the medical term for dry mouth: xerostomia. Try to go without these substances for a day or two and see if your symptoms improve. If you only have these occasionally, there is probably another cause for your symptoms. Still, lowering your intake may make your condition less severe. Follow these links to get advice on how to quit smoking, stop drinking, or stay away from caffeine. . If you think you might be dehydrated, start drinking plenty of water or any other liquid even when you are not thirsty. Drink sports drinks as well to ensure you have enough electrolytes, which are vital for healthy fluid levels. If your dehydration is caused by vomiting, diarrhea, blood loss, severe burns, or excessive sweating, visit a doctor. . If your dry mouth is worse when you wake up, it could be caused by snoring. A humidifier may help by keeping the air moist at night, but consider talking to a doctor to find the cause of the snoring. Keep in mind that only an otolaryngologist will be able to examine in detail any potential cause, so you may want to ask your doctor for a referral to a specialist. If you wake up feeling irritable or tired after a full night's rest, you may have sleep apnea. This is characterized by a long pause in your breathing, followed by a gasp or snore. If none of the lifestyle changes above improve your condition, visit a doctor. Dry mouth can be a symptom of a serious medical condition.  If you have dry eyes as well, you may have Sjögren's Syndrome, a serious condition. Ask for medical tests to confirm this or find a different diagnosis.  Let your doctor know if you are at risk for high blood pressure, diabetes, anemia, cystic fibrosis, arthritis, any head injury that might have caused nerve damage, or HIV/AIDS....

How would you rephrase that briefly using Chinese?
检查药物的副作用。 避开烟草、酒精和咖啡因。 治疗脱水。 防止打鼾。 如果你找不到原因，请去看医生。 情况严重的话，不妨向医生咨询基因治疗。