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.
The excretory system removes cellular wastes from the body. By getting rid of wastes, the excretory system helps maintain a proper balance of body chemicals. The organs of the excretory system are the skin, lungs, urinary system and liver. E. SKIN.