How do you treat tuberculosis?

The skin test site is negative if the skin mound diameter is less than 5 mm, weakly positive if the skin mound diameter is 5 to 9 mm, positive skin mound diameter is between 10 mm and 19 mm, and strongly positive if the skin mound diameter exceeds 20 mm or local skin primary level and necrosis. It is recommended that the observation be made 48 to 72 hours after the skin test.