I am just returned from abroad due to medical unfit. I was medically fit and x-ray was clean 6 months before. However, now, there is scar showing in chest x-ray. Doctor is saying, its old tb. I dont have any symptoms of tb. I dont smoke and I dont drink. However, I used to chew parag. Can parag create TB? Kindly help. If the scar is not because of TB, how can i clear it from chest x-ray?