I was suffering loose motion 15 days ago. Took medicine from family doctor fr 2 days I was OK fr 2 days. Then again loose motion started. Again I took medicines like metrogyl, ciplox, entrogermin and one lose motion stopping tablet. I was OK four days after medicine finished. Again loose motion started. I have done my stool test and found pus cells 2-3 hpf. RBC 3-4hpf. Occur blood -weak positive. Parasite , ova, vegetative form etc are absent. Now doctor has given me nitazoxanide 500, hifen plus 200for 5 days. I have taken two dosage yesterday and had sever loose motion again.please suggest if medicine are correct and how much time more it will take to show result before I consult another doctor.