Final answer:
Fexofenadine with pseudophedrine is commonly used to treat allergies.
Step-by-step explanation:
The combination of fexofenadine and pseudoephedrine is commonly used to treat allergies. Pseudoephedrine is a nasal decongestant that helps relieve congestion, while fexofenadine is an antihistamine that helps reduce allergy symptoms like sneezing and itchy eyes. This combination medication effectively treats symptoms caused by allergies such as hay fever.