Hi, Thanks for writing in to us. It is important to know the size of the exophytic cyst in your right kidney. Very often, a cyst or two may be seen in the elderly and they measure up to 3 cm in size. Beyond 3 cm size, it it important to know the appearance and internal contents of the cyst. Exophytic cysts usually do not cause any difficulty when small in size. Only if they are more than 8 - 10 cm in diameter and are causing significant pressure effects, then a surgical treatment can be thought of. Medicines do not treat kidney cysts in any way. The Grade I prostatomegaly must be discussed with symptoms of any urinary retention. You can also get PSA levels done for better analysis. Medicines are given to treat grade I prostate enlargement and this helps most people. Please avoid drinking too much water at night if you have urinary urges while sleeping and have to get up many times at night to void your bladder.