It is very common to have questions about your medication. Taking Allegra (fexofenadine) daily for more than a week can sometimes cause mild throat-related side effects, most commonly throat dryness. This dryness can occasionally lead to a slight tickle, mild irritation, or a dry cough. This happens because antihistamines work by drying up fluids to relieve allergy symptoms. Please be reassured that this is a very common, harmless side effect. Staying well-hydrated by sipping water throughout the day or using throat lozenges can easily help soothe this. If you feel any severe discomfort, do check in with your doctor.
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Can taking Allegra 120 for more than a week cause any throat side effects, and what are they?