Harvard University Health Services

Allergy Medications

What allergy medications are used?
There are a variety of allergy medications used that can help you feel better and prevent other types of problems such as ear and sinus infections and asthma attacks. These include both over-the-counter (OTC) and prescription medications.

Medications work in different ways. Speak to your health clinician to make sure you are taking the appropriate medications for your symptoms.  Be sure to tell your provider or pharmacist about other medications you take and your other health problems.

Common Allergy Medications
Medication Indications Comments
Antihistamines Help reduce sneezing, runny nose and itchy eyes Some of these medications may cause drowsiness and dry mouth but these symptoms usually get better over time. OTC Claritin and some newer medications may cause less drowsiness.  If your symptoms do not get better with these pills, consult your Clinician.
Decongestants Help relieve nasal congestion Can be drying and may make you feel jittery. Avoid using OTC nasal sprays, such as Aftrin for more than 3 days.

Nasal sprays may include, steroids, antihistamine, cromolyn, normal saline.

Decongestants decrease allergy symptoms and nasal congestion. Some may take a few days to one week to bring relief.

If symptoms are severe, in spite of medications, you may need an evaluation by a physician specializing in allergies and/or allergy injections (desensitization therapy). Contact your clinician if you have any questions and/or:
  • Symptoms get worse
  • Symptoms interfere with work or school
  • Have green or yellow discharge
  • Develop a productive cough (wet cough with sputum)
  • Have an elevated temperature (over 101 degrees F or over 38 degrees C)

Life-threatening emergencies: call 911 or 9 911 (from campus)  |   Urgent care at HUHS: 617.495.5711

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Disclaimer: The information provided on our website is not intended to diagnose or treat any health problem or disease. It is meant to support, not replace, the relationship that exists between an individual and his/her clinician.