Red, swollen bumps underneath the eyes are either acne keratosis pilaris, chalazia or styes. These bumps can also be caused by allergic reactions to cosmetics.
Oily skin can cause a buildup in the pores around the eyes and create pimples caused by acne. These can be treated by over-the-counter acne medications. Dry skin can cause a buildup of dead skin cells, leading to the development of bumps that look like tiny pimples but are actually a symptom of keratosis pilaris. This condition is not curable, but a dermatologist can prescribe medication that can lessen the symptoms.
A painful bump on the edge of eye can indicate an infection in a hair follicle that has caused a stye. There are many home remedies and over-the-counter treatments that can help with this condition. A chalazion looks similar to a stye but is slightly larger and not painful. The same methods for treating a stye can be used to treat a chalazion. Itchy bumps may indicate an allergic reaction to cosmetics. Those who experience a sudden occurrence of itchy red bumps after using a specific cosmetic should discontinue using that product.
Those experiencing pain, itchiness and swelling or have bumps that obstruct vision should contact a health care professional for diagnosis and treatment.