These usually contain a decongestant, but the decongestant in the nasal preparations can act more quickly and strongly than ones found in pills or liquids because it is applied directly in the nose.
People who regularly take garlic pills or other forms of garlic do so in an attempt to regulate blood pressure, cholesterol, and as a decongestant.
Some people complain of rebound congestion, which occurs when, after the decongestant has worn off, the congestion returns even worse than before.
Decongestant drugs are chemically similar to epinephrine and norepinethrine, which are hormones that cause excitation in the body.
Garlic: Natural Home Remedies recommends garlic, cooked and added to food, as a nasal decongestant.
For example, taking caffeine with the decongestant phenylpropanolamine can raise blood pressure.
Nasal decongestant sprays can loosen nasal and sinus congestion and relieve blocked airways.
Decongestants or the short-term use of decongestant nose sprays can be useful.
Ginger has also been shown to work as a decongestant and an antihistamine.