小于两岁的宝宝过敏性鼻炎需要注意一下疾病。

These include adenoidal hypertrophy, acute or chronic sinusitis, congenital abnormalities (choanal atresia), foreign bodies, and nasal polyps.需要鉴别诊断的有腺样体肥大，急性慢性鼻窦炎，先天畸形，异物以及鼻息肉。