Allergy

Yesterday, Aqil bought that little Persian kitten home from Pak Cik's house. He insisted that he want that kitten and raised them with his two other cats, Willy and Muffy. Omma and I said to himt hat we could not afford to raise another kitten because that will bring harm to me. All this while, Omma and Appa never let me raised cats because I have allergy with furry animals. I thought as I grow older, the allergy will disappear but I was mistaken. Ever since we raised Muffy, I started cough and sputum starts to develop and today, it somehow getting a little bit worse than before. I don't want to let them go, especially Muffy because we somehow had create an ' ionic bond ' together. I love her. What should I do?