Causes of Pale Skin, Pallor, Paleness, Grey Skin. Pallor, aka pale skin, paleness, grey skin, is the loss of color in comparison to your normal skin color. Pale skin is not a concern if your skin paleness is caused by a fair complexion or lack of sun exposure. However, paleness may be a health concern if your usual skin pigment goes grey.
The inside of your nose is lined with a moist, thin layer of tissue called a mucous membrane (say: MYOO-kus MEM-brayne). This membrane warms up the air and moistens it. The mucous membrane makes mucus, that sticky stuff in your nose you might call snot.
A blocked nose is due to swollen erectile tissue. During a cold, the lining of your nose is the battlefront, says Professor Eccles. When your nose feels blocked, it isn't because it's full of mucus, but because the blood vessels in your nose are inflamed. The nasal lining is made from erectile tissue (similar to the tissue in the sexual organs).