According to MedlinePlus, sinus drainage manifests itself in two forms: a runny nose or postnasal drip. A runny nose is when mucus drains out of the nostrils, while postnasal drip is excessive mucus dripping in the back of the throat. Sinus drainage may be the result of allergies, the common cold or extreme changes in temperature, such as going from a hot summer day to a cold air-conditioned building. Before treating any form of sinus drainage, a person should consult a doctor to determine the cause of the discharge. Knowing what to treat will help determine which remedy is the most appropriate.
Antihistamines
Antihistamines are commonly used to treat allergies. When a person's body doesn't recognize a particular substance such as animal dander, the immune system releases antibodies and histamine to combat the substance. Histamine is the chemical in the body that causes common allergic reactions such as itchy eyes, a runny nose and a scratchy throat. Antihistamines prevent the body from overproducing histamine, providing relief of common allergic reactions. Antihistamines also help to dry excess mucus, which can help remedy sinus drainage. Some antihistamines can make you drowsy, so use caution before driving or operating heavy machinery if you take an antihistamine that causes drowsiness.
Home Remedies
"The New York Times" states that keeping mucus thin is the best way to prevent sinus drainage from turning into a more complicated condition, such as an infection. Drinking extra fluids will help to keep the nasal discharge free-flowing to clear out the congested sinus cavity. Running a humidifier will also help to maintain proper moisture in the sinuses to prevent them from becoming inflamed and congested. Saline nasal spray or saline sinus washes are also beneficial to remedy sinus drainage by cleansing the sinuses and removing excess mucus.
Antibiotics
Antibiotics are only used to remedy sinus drainage if it is the result of a bacterial infection, which is primarily in the sinuses. Antibiotics are only acquired by a doctor's prescription and should not be taken in excess. Antibiotics kill both harmful and helpful bacteria in the body. A person who takes antibiotics excessively may be more prone to infections and resistant to common antibiotic drugs. Take the entire recommended dose prescribed by your doctor. Stopping the dose early could result in the return of the infection. Antibiotics do not treat the sinus drainage directly; they address the cause of the problem.
