### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
hi Dr. Andrew Rynne.In 2013,i was diagnosed with Minimal PTB left upper lobe. i felt chest pain during that time. so i went to a doctor and he told me i have to take medication for 6months. after 6months, the chest pain was gone. 2013 of June when i started to take med and finished it by the end of year. then by year 2014 month of May. i took medical exam as our company requires every year. My xray appeared Minimal PTB again same lobe. i told the doctor who was incharge that i already took 6months medication. she just told me that maybe just a scar. i did not consult to my doctor about my xray. after 5months, i started to feel pain not in my chest. but on my back. i wonder why it exist on my back not on my chest. is there any advice for this?do i have to take medication again for six months?

### output:

Thanks for asking the question completely understand your problem actually lungs are a 3d structure, so it covers whole of the thoracic cage either front or back starting from 2 cm above the collar bone to the 9th rib, totally covered by ribs. Posteriorly it is covered by scapula as well. Now about tuberculosis, healing in tuberculosis inside the lung is same as healing of the wound on external surfaces, that means by causing fibrosis of the wounded area .and in case of pulmonary tb, healing takes time, it is a chronic process.it may take months to years. When this fibrosis occurs innings, it causes contraction of the area leading to stretching of the vessels along with the nerves supplying it, this is thought to be the reason for pain. And yes, no need to take treatment for tuberculosis again, you need to get your sputum checked for AFB first and if its positive then only u have to take the treatment.i don't think this is the case with you, so don't worry have some pain killers.thanks/regardsfeel free to ask more questions may god bless you with good health