Hello, Sorry to hear about your father. Coming to the point. What is the age of your father? Is the TB is of the Lungs? because it can even be off the bone too? If it s for lungs or bones I will recommend to take an oxygen saturation machine on rent at home so that the gets a constant supply of oxygen. The basic principle of this oxygen is that it acts as a fuel to the cells and allow the healing process to occur by reducing the pain. Next, Since you mentioned he is diabetic I will request you to ask him to do as much as a breathing exercise. The reason is, the respiratory system burns a maximum amount of calories when used. The respiratory system is the only system which uses 80% of the human body energy. For example, when one suffers from cold or cough, he/she is too tired the reason is the lungs are consuming maximum energy from the body. So anyone can go to work with back pain and knee pain, but with cold and cough, they feel miserable. Next, you asked a suggestion for leg pain. I would say why don t you approach a physical therapist. They will use TENS therapy which will help your father to have a reduction in the leg pain. TENS therapy has been graded effective in most types of pains. since your father diabetic, I feel TENS therapy is the right thing to do. Also, some passive movement of the legs to drain the metabolic waste and also keeping the leg elevated over the pillow should help. In my clinical practice of 12 years, most diabetic cases even without TB complain of leg pain a lot. But with a sensible approach, most have responded well to TENS therapy and Exercises. Hope I have answered your query. Let me know if I can assist you further. Regards, Jay Indravadan Patel, Physical Therapist or Physiotherapist