Hi Manal,
My heart goes out to you and to all the parents, but as others have said before me now honesty is your best policy.
You should sit both kids down and explain things to them both. Explain the disorder, the treatment, the day to day living, diet and anything else you need too.
I don't recall what age my mom told me that I had thal major but i remember she explained things to me, how i have to go for blood to be able to go to school, i need to do my injection so i can one day be a big girl, u need to brush your hair so its nice and tidy, u need to brush your teeth for healthy teeth and gums etc. You just need to explain things to them in a simple manner.
Your little one may say but why me - it may hurt you. I blamed my mother when I got to 16 yrs of age, I was cruel to her I said alot of things that hurt her but as she said to me, "YOU are the result of two people being in love, how do you control outcomes when you are not sure if there will be any?" My parents didnt know they were carriers of thal, i was diagnosed at 3 months.
If I remember correctly I have posted on the forum of my story where as i mentioned before i kept blaming my mother for everything, how she knew she was a carrier and she knew and she wanted me to suffer. (I was so cruel to my mother )
My mom worked at a school for the physically disadvantaged children, I saw alot that day and at the end of the day my mom said to me " Is there anything wrong with you?". I was moaning "oh i got thal and how terrible and how this and that" after that visit i saw how lucky I was to ONLY have Thalassaemia Major. I hung my head and said NO we are blessed we are able to walk , talk and do many things other people can't do. We only live with a condition that needs abit of personal grooming on the inside to make us look good on the outside.
I think there is a picture book you can get about thalassaemia and explaining it to kids. I know TIF has it for sure. Also there is a magazine from Apopharma u can get, I think its called Iron Warriors. I have some copies here at my office which I would love to send to you Manal and anybody else that might want one. It explains thalasaemia and our treatment in a simple format and in a fun way a cartoon coloring book. ( PM if you want me to send u a copy)
Good luck with all this and I am sure you will do a great job. I know our job as parents are not easy but you are all doing a wonderful job and you should all be so proud of yourselfs. Your children will be proud of you also like i am of my mom
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Miaki