What Causes Itching And Joint Pain In The Legs?

i am having irresistible itching and joint pain in my legs, i have been taking atarax 10 and xyzal since a week, but it has no effect, what to do?.. i am having tuberculosis, i am taking rcinex, pyzina 750 twice a day, benadon 40, combutol 800 since a month..i also get streptomycin 0.75 mg injections every alternate day, since now i have taken 15 of them, how much more do i need? i was hospitalized on 3rd October, for 5 days, after that i dint get fever. but now, am getting fever since few days again. my age is 21 yrs, 5'2 inch long and my weight is 43kg at present. please reply me as soon as possible.