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(HealthDay News) -- A tuberculosis (TB) skin test determines if you have TB germs in your body, says the Centers for Disease Control and Prevention. For the test, a harmless fluid is injected under the skin on the inside of your arm. A very small needle is used.
After a TB skin test, the CDC recommends:
- Do not bandage, lotion or scratch the spot.
- If the area itches, apply an ice cube or cold cloth.
- Return to your doctor 2 to 3 days after your TB test for a reading.
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