Allergy Testing

Dr. David Jeong MD, board-certified allergist and immunologist at Spring Valley Pediatrics Washington DC

Comprehensive Diagnostic Testing for Children and Adults

Spring Valley Allergy & Immunology offers comprehensive allergy testing for children and adults.

Skin Prick & Intradermal Testing

Skin testing can be used to diagnosis environmental allergies to pollen, dust mites, mold, animal dander, mold spores, cockroaches, and feathers. It is also used to diagnose food allergies.

Patch Testing

Patch testing is available for the evaluation of allergic contact dermatitis.

Pulmonary Function Testing

Pulmonary function testing is available for patients being evaluated for conditions such as asthma and other respiratory symptoms.

Oral Food Challenges

Oral food challenges are the gold standard diagnostic test for food allergies, offered when the history and allergy testing are inconclusive, if a food allergy appears to be resolved, and to measure response to food allergy treatments.

Drug Challenges

Oral drug challenges are also available when appropriate as part of the evaluation of suspected drug allergies.

Allergy Blood Testing

  • Allergen-specific IgE
  • Allergen-specific IgG4
  • Basophil activation testing
  • Testing for immune deficiencies and other immune disorders

How to Prepare for Allergy Skin Testing

  • Please stop your oral antihistamines 1 week before your appointment so that skin testing can be completed accurately. Examples include Zyrtec, Allegra, Claritin, Xyzal, Benadryl, Pepcid, cetirizine, fexofenadine, loratadine, levocetirizine, diphenhydramine, chlorpheniramine, brompheniramine, hydroxyzine, famotidine, and any other generic equivalents. Please note that many OTC cough and cold medications contain antihistamines.
  • Please stop nasal antihistamine sprays (Dymista, Astepro, Patanase, azelastine-fluticasone, azelastine, and olopatadine), if applicable, 2 days before your next appointment so that skin testing can be completed.
  • It is ok to continue all asthma inhalers, nasal steroid sprays (e.g. Flonase, fluticasone, Nasacort, Nasonex, Rhinocort) and Singulair (montelukast), as these medications do not affect allergy testing results.
  • If you are unable to stop your antihistamines prior to your appointment due to ongoing symptoms, it is ok to continue your medications without stopping. At your appointment, we will discuss allergy testing by blood work or establishing a treatment plan right away with plans to perform skin testing for allergies at a later time.
  • Some medications used for mental health conditions contain antihistamine properties. Please do not stop these medications for the purpose of allergy testing unless your prescribing provider has deemed it safe to stop for at least 10 days.

If you are uncertain whether any medications you take contain antihistamines, please call our clinic for further guidance.

Spring Valley Pediatrics is committed to providing you the highest level of medical care.

Welcome to Spring Valley Pediatrics. If you are a new patient, here is what to expect from your very first visit.

Your child will see the same physician and nurse at every visit — sick or well. That means your doctor knows your child’s complete history from the very first appointment and can build on it at every visit that follows. Our board-certified pediatricians have each been named Washingtonian Top Doctors for years, and the practice was inducted into the Washingtonian Top Doctors Hall of Fame in 2026.

We are open 365 days a year, including weekends and holidays. Same-day sick visits are available every day — call 202-966-5000 in the morning and we will schedule your child that day.

Food Allergies

  • Food allergies
  • Food protein-induced enterocolitis syndrome (FPIES)
  • Food intolerance
  • Alpha-gal syndrome

Learn About Food Allergy Care >

Environmental & Nasal Allergies

  • Environmental allergies
  • Allergic rhinitis
  • Nonallergic/vasomotor rhinitis
  • Chronic sinusitis
  • Nasal polyps

Asthma & Respiratory Conditions

  • Asthma
  • Chronic cough
  • Vocal cord dysfunction

Eczema & Skin Conditions

  • Eczema
  • Atopic dermatitis
  • Hives/urticaria
  • Swelling/angioedema
  • Allergic contact dermatitis

Drug & Insect Allergies

  • Honeybees
  • Hornets
  • Yellow jackets
  • Wasps
  • Mosquitoes

Eosinophilic Disorders

  • Eosinophilic esophagitis (EoE)
  • Eosinophilic gastrointestinal disorders
  • Hypereosinophilic syndrome

Drug & Insect Allergies

  • Honeybees
  • Hornets
  • Yellow jackets
  • Wasps
  • Mosquitoes