Allergy & Asthma Center of Central Maryland

Patient Information


For your first appointment

In order to do skin testing, do not take antihistamines for 5 days before your appointment.  Please refer to the list below.  Please call if a medication you are taking is not on the list and you are not sure if it is, or contains, an antihistamine.

The first visit will take approximately 2-3 hours, which includes a consultation with your provider and appropriate testing.  Please bring your medication list, any relevant blood test results, breathing test reports, and reports of x-rays, CT or MRI scans.  If you have seen an allergist before, bring previous records, including skin test and blood test results. 

Please arrive 15 minutes prior to your appointment to fill out New Patient Registration paperwork.  You can also complete your New Patient Registration paperwork on our Patient Portal (see below). Please remember to bring your insurance card, driver's license or identification card, and a referral, if your insurance requires you to have one.  

Please click on the link below to sign into the Patient Portal where you can complete your New Patient Registration prior to your visit.

Patient Portal with New Patient Registration


Food challenge appointments

Be prepared to be in the office for 3-4 hours.  Stop antihistamines 5 days prior to the appointment. Please refer to the list of antihistamines below.  You will not have a food challenge at your first appointment.  


Stop taking these antihistamines 5 days before your visit

Azelastine Nasal Spray

Meclizine (often used for motion sickness)
Olopatadine Nasal Spray

Doxylamine (Unisom, often used as a sleeping aid)


Stop Benadryl (Diphenhydramine) 24 hours before your visit. 

Stop any over-the-counter cold medicines 3 days before your visit. 

Please continue asthma medicines, including Singulair (montelukast) and inhalers (e.g., albuterol, Advair, Pulmicort). 

Also continue steroid nose sprays (e.g., Flonase [fluticasone], Nasonex, Veramyst).  

To avoid a $50 fee, notify us at least 24 hours prior to your appointment to cancel or reschedule.

Cancellation Policy

2019-2020 Holiday Schedule

November 28-29 (Thanksgiving): CLOSED
December 24 (Christmas Eve): 9 AM - 1:00 PM (Shot clinic starts at 9 AM, last allergy shot at 12:30 PM)
December 25 (Christmas): CLOSED
December 31 (New Year’s Eve): 9 AM - 1:00 PM (Shot clinic starts at 9 AM, last allergy shot at 12:30 PM)
January 1 (New Year’s Day): CLOSED