Hi Doctor! 2 days ago I took a Mantoux test, and today by looking at the mark, the nurse said it s positive. So after that they asked me to take a chest X-ray, and I did so. Since I am healthy they said that the germs might be latent. Is there anything I should worry about? The test left a swollen mark on my arm, How should I cure for it? Are there any precautions I should be taking?