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If I get conjunctivitis once can it come back?
Conjunctivitis is inflammation of the conjunctiva, which is the thin transparent membrane that covers the white part of the eye (sclera). Different types of conjunctivitis can occur. Allergic conjunctivitis is caused by allergens (pollen, dust, pets or perfumes) contacting and irritating the conjunctiva. This type may be the most common and it is not contagious (catching or spreading) and has a tendency to recur. Two other types of conjunctivitis, bacterial and viral, are highly contagious. Bacterial conjunctivitis refers to an infection caused by bacteria attacking the conjunctival layers. Viral conjunctivitis refers to viruses that can infect the conjunctiva. If the person comes into contact with the bacteria or virus again, they could get conjunctivitis again. Herpes virus can cause recurrent conjunctivitis (like recurrent cold sores). Chemical conjunctivitis refers to chemicals or thermal injuries affecting the conjunctiva layers.
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