These medications are generally well-tolerated by most people. Some common side effects may include, but are not limited to:
Oral antihistamine tablet: drowsiness, headache, abdominal pain, nausea, dry mouth/nose/throat
Nasal spray: headache, dizziness, nosebleeds, nasal dryness/irritation, cough, nausea or vomiting, or an increase in eye pressure.
Eye drops: Headache, blurred vision, eye pain or swelling, nausea, runny or stuffy nose, sore throat.
The benefits and risks of these treatments must be discussed with a doctor, and if you are ever having any side effects, please discuss directly with them.