There are some treatment and preventative methods that can help you when you have or think you might be getting a sinus infection. When you first suspect a sinus infection or cold is coming on, start taking zinc as quickly as possible. Studies show that zinc taken within 24 hours of the beginning of cold symptoms greatly decrease the duration of the symptoms.  Studies show that a dose between 75 mg-150 mg daily will shorten the duration of a cold by 42%.  You can get zinc in a lozenge form over the counter at most drugstores. Try common brands such as Cold-EEZE. To use, dissolve the zinc lozenge in one cup of water and drink every one to three hours for your total daily dose. Ingesting a large amount of vitamin C naturally enhances your immune function. This can help fight the symptoms of your sinus infection. Multiple studies show that 2000mg of vitamin C daily provided great benefits in reducing not only duration but severity of the symptoms.  You need to get at least 1000 mg daily to help fight the symptoms. You can also ingest even more than 2000 mg because no side effects have been reported when more than the recommended daily amount is consumed.   You can get more vitamin C every day through citrus fruit and leafy green vegetables. You can also buy over the counter supplements in powder, tablet, and chewable form. When you start to feel your nostrils inflame, you can use a neti pot to help with the symptoms. A neti pot is a miniature teapot shaped device that cleanses your sinus passages by flooding warm water through one nostril and out the other. To use, fill the pot with warm water that is around 120 degrees. Tilt your head to the side to allow the water to pour into your right nostril and drain out the left.  It can be dangerous to use a neti pot if used incorrectly. If you breathe during a nasal douche, it can introduce bacteria into your nasal cavities and possibly lead to pneumonia. There have been some case reports of rare amoebic infections in areas with unclean water inhabited by this...

How would you rephrase that briefly using Vietnamese?
Cung cấp khoáng chất. Cung cấp vitamin C. Sử dụng bình rửa mũi chuyên dụng. Sử dụng cúc dại. Sử dụng thuốc chống dị ứng.