Signs and symptoms of a stye include: 
A red lump on your eyelid that is similar to a boil or a pimple
Eyelid pain
Eyelid swelling
Tearing
 Another condition that causes inflammation of the eyelid is a chalazion. A chalazion occurs when there's a blockage in one of the small oil glands near the eyelashes. Unlike a stye, a chalazion usually isn't painful and tends to be most prominent on the inner side of the eyelid. Treatment for both conditions is similar.