With TB infection the germs in your body are dormant (sleeping),so you will not feel sick. But it is important to take TB medicine to kill these TB germs. .As long as you have TB germs in your body, they can wake-up, multiply, and make you sick with TB disease. The only way to get rid of them is by taking TB medicines
Why should I take the medication if I don't feel sick?
Yes. The treatment you receive for TB infection only treats the TB germs in your body now. There is a chance that you can be around someone else with TB and get new TB germs. Yet most healthy people won’t need to be treated ever again.
Once I complete treatment for TB infection, can I get TB infection again?