Some of the most common causes of bloodshot eyes include dust or allergens, dry air, exposure to the sun, bacteria or viral infection, and coughing, according to Healthline. Bloodshot eyes occur when the blood vessels of... More » Health Pain & Symptoms

Medical conditions such as blepharitis, episcleritis, iritis and uveitis cause bloodshot eyes, according to the Mayo Clinic. Additional causes for red, irritated eyes include hay fever, viral or bacterial conjunctivitis,... More » Health Vision

Stress can be one of the causes of bloodshot eyes, though there are specific causes of morning and evening bloodshot eyes such as sleep deprivation, overuse of contact lenses, alcohol and food/diet. Bloodshot eyes will o... More »

Allergic or bacterial conjunctivitis, dry eyes, hay fever or a sty within the eye can cause red, bloodshot eyes, according to Mayo Clinic. People with an eye injury or foreign object in the eye typically have red, bloods... More » Health Pain & Symptoms

The main cause of a stomach bug, also known as gastroenteritis, is a viral infection often brought on by bacteria in the body, according to WebMD. People can contract a stomach bug through contact with an infected person... More » Health Pain & Symptoms

Itchy eyes are commonly caused by an exposure to allergens that releases histamines and causes red, watery and itchy eyes, according to Eye Health Web. Dry eye syndrome and eye disorders such as blepharitis can cause the... More » Health Conditions & Diseases

Causes of chapped lips include exposure to air that has no humidity, such as during winter; repeated exposure to the sun, such as during summer; certain medications, such as chemotherapy drugs and constant licking of lip... More »