Post-Vaccination Care: BCG (Tuberculosis) Vaccine

1. Keep the injection site clean and dry.
2. Use a cotton ball soaked in boiled water (cooled down) to gently clean the area.

Expected Reactions After Vaccination

Unlike most vaccines, the BCG reaction develops slowly over several weeks. It is often referred to as a "normal" primary complex.

1. Small Pustule/Lump: About 2–3 weeks after the injection, a small red bump or a tiny pustule (pimple-like) may form.
2. Do Not Squeeze: It is strictly forbidden to pop, squeeze, or apply pressure to the lump or pustule. This can cause severe irritation or lead to secondary infections.
3. Natural Cycle: The bump or small ulcer may appear and discharge fluid intermittently for about 3–4 weeks. You do not need to apply any medication; it will heal on its own.
4. If the Ulcer Bursts: Use alcohol to clean only the surrounding skin twice a day (morning and evening) until it dries. This helps prevent external bacteria from entering the wound.

When to See a Doctor

Side effects from the BCG vaccine are rare, but you should seek medical attention if you notice a severe local reaction or signs of systemic issues:

1. Large Abscess: A very large lump or persistent deep pus discharge that does not show signs of healing.
2. Lymphadenopathy: Noticeable swelling of the lymph nodes in the armpit or above the collarbone on the same side as the injection.
3. Inflammation of Bones/Joints: Although extremely rare, any signs of bone or joint pain/swelling should be evaluated.

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