It is not clear what you mean by dry kidney. At present doctors rarely use the term kidney dryness. However, according to the previous idea , kidney dryness means two diseases. A- Chronic kidney inflammation / disease. In this case, the amount of creatinine in your blood will increase a lot and the kidneys will gradually lose the ability to clean the blood. This disease is usually not completely cured. But it can be controlled by following the rules and regulations. Such as drinking a certain amount of water , not eating more than one fruit a week , eating less salt , eating one piece of fish or meat a day (not eating more). And stay under regular doctor's supervision. If creatinine is too high, dialysis may be required in the end. B-II may be the disease- you are suffering from dehydration due to kidney disease. So drink plenty of water. Avoid tea, coffee and soft drinks