How ?: How do you know that it is not from allergies given that you are already allergic to cat? Benadryl (diphenhydramine) does not decongest the nose. See you doctor for a rx nasal spray.
Answered 6/24/2014
4.7k views
Stil can be allergy: What described are symptoms of uncontrolled allergies of the upper airway, that need more aggressive control and evaluation by an allergist, Benadryl (diphenhydramine) alone cannot control those symptoms and loses efficacy after sometime.
Answered 6/24/2014
4.7k views
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