Find an Ophthalmologist. Dark spots can refer to blind spots or to shadows moving across vision cast by specks floating in the eye. The symptoms and possible related eye conditions/diseases in this section are for general reference only, and do not contain all visual symptoms or all possible related conditions or diseases.
A boil is a red, swollen, painful bump under the skin. It often looks like an overgrown pimple. Boils are often caused by infected hair follicles. Bacteria from the infection form an abscess, or pocket of pus. A boil can become large and cause severe pain. Boils most often happen where there is hair and rubbing.
Boil, also called furuncles, are painful, red lumps filled with pus on the skin above infected hair follicles. When boils appear in a group, they are called a carbuncle. Boils are painful as they get bigger, before bursting on their own after some days or weeks. The most common places for boils to appear are on the face, neck, armpits, shoulders and buttocks. When a boil forms on the eyelid, it is called a stye.