Alternative treatment shrinks enlarged prostates.

A ten-second blast of steam could be a promising new treatment for men with an enlarged prostate.
The experimental therapy uses steam to destroy excess tissue caused by benign prostatic hyperplasia (BPH), a non-cancerous condition in which the prostate 'grows' with age.
The prostate is a doughnut-shaped gland - around the size of a walnut - that wraps around the urethra, the tube that carries urine from the bladder and out of the body. The gland tends to become larger as a man ages, possibly due to changing hormone levels.
As it grows it can press on the urethra, and the first sign of the condition is usually trouble passing urine, difficulty starting even when the bladder is full, and a need to urinate more frequently.  Treatment often involves alpha-blockers, drugs that relax muscle fibres within the prostate. Potential side-effects include dizziness and headaches.

Source  - Daily Mail