
Allergies are the immune system's specific reaction to normally harmless substances, such as pollens, certain foods, or medicines. Allergies can either be seasonal or perennial. Seasonal allergies (such as hay fever) occur at specific times of the year, while perennial allergies can occur throughout the year.

Glaucoma : A common eye condition in which the fluid pressure inside the eyes rises because of slowed fluid drainage from the eye. If untreated, it may damage the optic nerve and other parts of the eye, causing the loss of vision or even blindness.

Claritin Dosage. Your Claritin dosage will be affected by a few different factors, which this eMedTV article describes. Dosing guidelines for adults and children are included, as are helpful tips that can help ensure an effective treatment process.

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