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Conjunctivitis in Rainy Season

Rainy season brings a cooler climate and a greener landscape. However, it invites lot of health disorders as well. Although respiratory and skin illnesses are most common during the rainy season, our eyes are also at a higher risk of getting conjunctivitis (also known as pink eye). Dr. Chareenun Chirapapaisan, ophthalmologist at TRSC International LASIK Center, has some suggestions for you.

Why is a conjunctivitis outbreak common during the rainy season? The rainy season provides a very suitable environment for the manifestation and increased activity of latent microorganisms that can contaminate the eyes. Rainwater that washes off rooftops, buildings and fences may contain harmful virus or bacteria and can be the source of infection should it splash into one’s eyes. The infection, which may occur within 1-2 days, has a contagious period of around 14 days. The symptoms are as follows:

- Redness in the sclera (white part of the eye)

- Irritation, burning sensation

- Viral Infection: Swollen eyelids, excessive tearing, swollen lymph nodes, coughing, sore throat and severe light sensitivity.

- Bacterial Infection: Green or yellow discharge, excessive tearing and blurry vision.

- Allergies: Itchiness, burning and excessive tearing.

Protection from Conjunctivitis

1. Avoid close contact with infected patient and refrain from sharing personal items such as handkerchiefs and towels.

2. Do not let unclean water get into your eyes and refrain from swimming.

3. Wash your hands often with soap and water and avoid touching your eyes.

4. Avoid crowded areas such as public buses, BTS, and MRT. Wear sunglasses or windproof glasses if needed.

5. Be careful not to have any foreign body get into your eyes.


1. Take a lot of rest and stay home from work until you are fully recovered.

2. Artificial tears can be used in the case of irritation. If symptoms do not improve, please see an eye doctor for proper treatment.

During the rainy season, be sure to take good care of your health. If you experience any symptoms, please see an eye doctor for proper medical treatment.

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