Welcome to HCM
Read your prob, if you gave BCG
once it provided immunity for life long. so there is no need to be given other dose. you got mountex test slight swelling occure in every child, if induration is more then 15mm then it considered as positive n start medicine for it. if swelling or induration is less then 15mm then no need to be started any medicine. after taking these drugs urine becomes red so do not worry about that ,its normal.