Hello Gaurav,
The final and ultimate cure to thalassemia major,until now is Bone marrow transplant,which itself is quite risky,although a thal major can live a fairly normal life by transfusing on time,keeping their iron levels low and adding supplements to their daily diet to get the maximum benefits several vitamins and minerals can provide.
Frankly i don't think that Homeopathy can cure thalassemia major,and believe me i have tried it,and i am sure other members of the forum will also agree with me.
How frequently is your son transfusing? what are his iron levels? and is he on any chelator to remove extra iron from the body? Please answer these questions and we'll be here to guide you accordingly
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Zaini.