A flush valve is a mechanism used to flush a toilet or urinal. The valve and associated hardware are located within the toilet tank or in the body of the urinal. Most toilets have a lever or push button activator, which is used to operate the flush valve.
Photosensitivity (or sun sensitivity) is inflammation of the skin induced by the combination of sunlight and certain medications or substances.This causes redness (erythema) of the skin and may look similar to sunburn.hotosensitivity (or sun sensitivity) is inflammation of the skin induced by the combination of sunlight and certain medications or substances.
Certain ointments may cause sun sensitivity. Sun sensitivity may cause a person to break out in hives. Sunscreen, which can help with sun sensitivity. A woman on birth control pills may experience photosensitivity, or a sensitivity to light. Rosacea is a skin condition that causes sensitivity to sunlight.Wearing cologne may cause sensitivity to the sun.un sensitivity may cause a person to break out in hives. Sunscreen, which can help with sun sensitivity. A woman on birth control pills may experience photosensitivity, or a sensitivity to light. Rosacea is a skin condition that causes sensitivity to sunlight. Wearing cologne may cause sensitivity to the sun.