In Teaching the Patient with Allergic Rhinitis About Management of the Condition,what

In teaching the patient with allergic rhinitis about management of the condition,what should the nurse explain?

A) Identification and avoidance of triggers of the symptoms are important to avoid reactions.
B) Allergic reactions can be prevented if oral antihistamines are taken before exposure to allergens.
C) Corticosteroid nasal sprays are the only topical drugs recommended for treatment of hay fever.
D) Prescription antihistamine drugs should be requested because over-the-counter preparations are ineffective for allergic rhinitis.