外出带口罩和洗鼻.图方便可以买 Saline Spray,一罐用完花粉期过了吧.
Nasal Irrigation
https://my.clevelandclinic.org/health/treatments/24286-nasal-irrigation
NasaMist Extra Strength Saline Spray
https://www.cvs.com/shop/neilmed-nasa-mist-saline-nasal-spray-4-2-oz-prodid-441988
Walgreens,Amazon 都有卖更便宜点.