My kid has been having constant stuffy nose which accelerated once he joined school. he is always tired and has a stuffy nose-brrathes through this nose every night while asleep. . very delicate when he eats any kind of vegetables or new food. he. has stomach upset fever or vomitting. iam scared to try new things .I tried orange juice hoping it might help now but I observed he gets severe throat infection. Can Orange juice cause throat infection in children? Whenever my kid has orange juice he gets throat infection and pain. My assumption was orange juice is good for building immunity, cold and cough please help