Hello,
I know this is a very serious dilema. I wouldn't go. Some years ago, a friend of mine, patient of Cancer, told me to go to the doctor who was treating him. He said he could cure the cancer and cronical diseases as mine. The doctor didn't ask either for money but he prescribed some medecins that you could only buy there, so he finally took the money. I told my friend I didn't trust in "other medicins" and I recommended to continue having his treatment in the hospital but he refused it. At first, he felt much more better, he thought it was because of his "new treatment" but it was just that he didn't have the effects of the chimiotherapy. As you can imagine, some months later, he died.
I'm not telling you that if you go visiting to this "doctor" the kid is going to die, I'm just asking you not to leave any of the treatments that your real doctor has prescribed for the child. You don't lose anything in visiting this place but you have to be concious that Thalasemia is a genetic disease and no one can change the gens of a person.
Another thing that I would ask you to think about is the extreme closeness to your home. Has he been always there? I know I have a tendency to mistrust of this kind of miracles; but I think that, if it is public that your kid is affected by Thalassemia and this doctor has arrived to the zone after your neighbourhood knew he was affected, they have installed there to catch you.
Finally, I just want you to bear in mind that Thalassemia Major is not a common disease. Usually, only those who suffer from Thal know about it. I'm sure you have already thought about it but if I was to go, I wouldn't take the child with me and I would start the visit asking questions about Thalassemia to the doctor like if it was an exam. I think that if he sais he can cure it, he must know about the disease, the treatments, the effects, etc. For example, if he doesn't know that the problem starts in the bone marrow or that one of the worst effects of the treatment is the ferritine increasement, he doesn't know about the disease and, of course, he cannot cure it.
Laura.