A million-dollar wound or Blighty wound is military slang referring to a type of wound received in combat which is serious enough to get the person sent away from the fighting, but is not fatal, nor will it leave the person permanently crippled.
In conclusion, Benadryl does not cause kidney damage directly, but if you uses excessively over a long period of time and there is urinary retention, the chronic urinary retention could ending producing kidney failure.
Kidney and urinary system parts and their functions. Two kidneys. This pair of purplish-brown organs is located below the ribs toward the middle of the back. Their function is to: Remove waste products and drugs from the body. Balance the body's fluids. Release hormones to regulate blood pressure.