If you suffer from hay fever you should do whatever you can to avoid substances that provoke hypersensitivity.Otherwise you will increase the risk of developing other, more serious, allergic diseases.

• 此病患者应尽量避免接触一些极易引起过敏性的物质；否则此病发展为其他或更为严重的过敏性疾病的风险性增大.