Along the same lines as OTC options, antihistamine medications, such as Sudafed, Claritin, Zyrtec or Benadryl, can also offer sinus infection symptom relief. While these medications specifically target allergy symptoms, sinus infection symptoms can be similar, making antihistamines worth a try.
Postnasal drip caused by allergies can be managed with OTC antihistamines and decongestants. Note that older antihistamines like Benadryl and Chlor-Trimeton can actually thicken mucus; instead, try Claritin, Alavert, Allegra, Zyrtec, Xyzal or Clarinex.
Antihistamines help relieve most allergy symptoms by blocking the action of histamine in your system, not the congestion. ZYRTEC-D® contains both an antihistamine and a decongestant for allergies. It powerfully clears your blocked nose and relieves other allergy symptoms.
Claritin, Zyrtec, and Allegra are three second-generation antihistamines that alleviate allergy symptoms that can lead to sinusitis. Some of them can be used daily.
Mucolytics. Mucolytics, such as guaifenesin, are chemical compounds that can help loosen and clear mucus from the nasal passages, sinuses, and lungs. They dissolve chemical bonds in mucus, making it thinner and helping it to drain more easily.
Chronic sinusitis can be brought on by an infection, by growths in the sinuses (nasal polyps) or by swelling of the lining of your sinuses. Also called chronic rhinosinusitis, the condition can affect both adults and children.
Antihistamines and decongestants may dry out the mucous membranes in your nose and sinuses and slow the movement of the cilia (the tiny hairs that line the nose, sinuses, and the air passages inside the lungs and that remove irritants). This can make mucus thicker, adding to drainage problems.
Antihistamines are just one type of over the counter medication that is used to relieve cold, sinus and allergy symptoms. Some are designed to relieve congestion in the sinus cavities, while others are used to suppress your cough or keep your airways open.
They then mistakenly take antihistamines, which end up drying out the nose and making thick mucus worse. "That's why it's important to make the right diagnosis," says Ellis, who also warns against self-medicating with decongestants like Sudafed, which are also drying and will further thicken your mucus.
Response and effectiveness. Peak concentrations are reached within one hour of administration of Zyrtec tablets or syrup. The onset of effect occurs within 20 minutes in 50% of people and within an hour in 95%. Effects persist for at least 24 hours following a single dose of Zyrtec.
You should not use Zyrtec-D if you have narrow-angle glaucoma, severe high blood pressure (hypertension), severe coronary artery disease, if you are unable to urinate, or if you are allergic to hydroxyzine (Atarax, Vistaril). Do not use this medicine if you have taken an MAO inhibitor in the past 14 days.
If you're looking to get rid of nasal congestion, a decongestant may work a little better and may be a bit stronger than a typical antihistamine. The thing is, taking a decongestant too often can make your symptoms harder to treat.
Cetirizine can be taken at any time of the day. In most people it is non-sedating, so they take it in the morning. However, a percentage of people do find it to be sedating so if it does make you drowsy it is best to take it in the evening. Cetirizine can be taken with or without food.
Zyrtec and Sudafed are two common OTC medications that can help treat allergies. Zyrtec is an antihistamine, while Sudafed is a decongestant. As an antihistamine, Zyrtec can help with many allergy symptoms, while Sudafed primarily helps with nasal congestion.
"The downside of Benadryl and antihistamines during a time when you have mucus buildup is they make the mucus thicker, so it has a harder time getting out of the sinus," said Larian. Instead, prescription nasal steroids can help ease symptoms.
Some older, sedating antihistamines may dry and thicken post-nasal secretions more; newer non-drowsy antihistamines do not have this effect. Immunotherapy (desensitization) using allergy shots or drops under the tongue may help. Talk to your doctor before starting any of these medications.
Chronic sinus infections
A chronic sinus infection, sometimes called chronic sinusitis, some can last for 12 weeks or longer. They can be caused by fungal infections or untreated bacterial infections, the constant infection and inflammation of chronic sinusitis won't go away on its own.
It is a common symptom of conditions such as the common cold, sinusitis, and allergies. The excess mucus can be caused by inflammation or swelling of the nasal passages, which can be due to a variety of factors such as viral or bacterial infections, allergies, or irritants in the air.
Drowsiness, tiredness, and dry mouth may occur. Stomach pain may also occur, especially in children. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
Cetirizine is unlikely to do you any harm if you take it for a long time. However it's best to take cetirizine only for as long as you need to. If you take it regularly over a long period there's a very small chance of severe itching if you stop treatment suddenly.