A sty is a bump that forms on or in the eyelid as the result of a blocked gland. The word sty can also be spelled stye.. There are two distinct types of styes: hordeolum and chalazion. Each has different causes and treatments. A hordeolum is a blockage of one of the sweat glands found in the skin of the lid and base of the eyelashes, or one of the small sebaceous glands found at the base of the eyelashes. Sebaceous glands secrete sebum, a waxy, oily material.
The foreign exchange market (forex, FX, or currency market) is a global decentralized market for the trading of currencies. This includes all aspects of buying, selling and exchanging currencies at current or determined prices.
Forex trading always involves selling one currency in order to buy another. For this reason, they are quoted in pairs that show which currency is being bought and which is being sold. Each currency in the pair is listed in the form of its three letter code, which tends to be formed of two letters that stand for the region, and one standing for the currency itself.