Home Remedies to Get Rid of Eye Sty (Stye) A sty is called hordeolum in the medical term. It is actually a type of infection of the oil glands present on the eyelids which results in red lump appear on the eyelids. At the stage when it is filled with pus, it will gradually spread over the head. Sties have common causes like dirt, makeup or other debris that tend to block and infect the oil gland with bacteria. This bacterium is known as staphylococcus that is responsible for about 95 percent of sties. Other than staphylococcus, there are many bacteria that also attack. People suffered with blepharitis are at higher risk of sties and the eyelash follicles become inflamed due to blepharitis. This problem is generally depending upon the following factors like stress, hygiene and hormonal disturbances. Sties by blepharitis may be more than one at a time. Day by day sty fills with pus and just appears something like a pimple on the eyelid. The usual area of the sties develops