Be sure to talk to your doctor before taking supplements or herbal remedies, especially if you are taking other medications or have any medical conditions to make sure they won’t interact or aggravate your condition. Also, the dosages in herbal remedies are not well regulated, so it is difficult to know how much you are taking. Remember: "natural" doesn't automatically mean "safe."  Take butterbur tablets.  A scientific study suggested that they may reduce inflammation and have effects that are similar to antihistamines. Bromelain may also have anti-inflamatory properties.  Inhale steam from water with eucalyptus oil added to it. The oil will give a sharp smell which will clear your sinuses. But don’t ingest it or put it on your skin because it’s poisonous.  Relieve congestion with a saline nasal spray. It will help reduce inflammation and dry out a drippy nose. Antihistamines can improve a drippy nose, itchy eyes, watery eyes, hives, and swelling. Some antihistamines can make you sleepy so you shouldn’t drive when you are taking them. Common ones include:  Cetirizine (Zyrtec) Desloratadine (Clarinex) Fexofenadine (Allegra) Levocetirizine (Xyzal) Loratadine (Alavert, Claritin) Diphenhydramine (Benadryl) It should reduce sneezing, stuffy sinuses, postnasal drip, and improve an itchy or drippy nose. These are available by prescription:  Azelastine (Astelin, Astepro) Olopatadine (Patanase) Keep them in the refrigerator to prevent them from stinging.  Azelastine (Optivar) Emedastine (Emadine) Ketotifen (Alaway, Zaditor) Olopatadine (Pataday, Patanol) Pheniramine (Visine-A, Opcon-A) If you aren’t able to tolerate antihistamines, you may have more success with these. They prevent your body from releasing chemicals that cause allergic reactions.  Cromolyn is an over-the-counter nasal spray. Prescription eye drops include: Cromolyn (Crolom), Lodoxamide (Alomide), Pemirolast (Alamast), Nedocromil (Alocril). Many are available over-the-counter. Some also have an antihistamine in them.  Cetirizine and pseudoephedrine...

TL;DR in Chinese:
尝试天然疗法。 使用口服抗组胺剂缓解常见症状。 使用抗组胺鼻喷剂。 使用抗组胺眼药水缓解眼睛发痒、发红或肿胀。 用肥大细胞稳定剂代替抗组胺剂。 用口服解充血剂缓解鼻腔和窦道阻塞。 用解充血鼻喷剂和滴液立刻缓解鼻塞。 用皮质类固醇鼻喷剂减轻炎症。 如果其它方法都不起作用，试一试皮质类固醇眼药水。 用口服皮质类固醇治疗严重过敏。 使用白三烯受体拮抗剂。 试一试脱敏治疗。