
Dr. Ramarathinam Nagarajan, MD
Pediatric Allergy
Medical Expertise of Dr. Ramarathinam Nagarajan, MD
Dr. Nagarajan is board certified Minnesota allergist and immunologist. He is also a board-certified pediatrician. He provides care to patients for all ages for a wide range of allergic disorders, including allergies, asthma, eczema and food allergies.
About Dr. Ramarathinam Nagarajan, MD
Dr. Nagarajan joined Eisenstadt Allergy & Asthma (EAA) in June 2000.
Conditions Treated
Procedures & Services
Tips & Wisdom
Using extracts of common allergens, a few skin tests demonstrate whether allergy is present. EAA first uses the prick testing method. It is associated with a bit of discomfort and small children may shed some tears. The test is performed by pressing a very small needle coated with the testing solution into the outermost layer of the skin of the forearm. If the prick tests are negative, intradermal tests may be required in order to not miss significant allergy factors. Intradermal testing invo...
Patient Education Resources
Click on the image to access medication savings. In most cases,this form must be submitted along with proof of having purchased the medication from the pharmacy. Offers may be time-limited....
EpiPens do have an expiration date, and it is important to replace them before they expire. The expiration date can be found on the packaging and the device itself.An expired EpiPen® may not work ...
If eating eggplant causes itching in your mouth, it is possible that you have an allergic reaction to it. Food allergies are caused by an abnormal response of the immune system to certain proteins fou...
Biologics are a class of medications that can be used to treat eczema, a chronic skin condition characterized by inflammation and itching. Biologics work by targeting specific parts of the immune syst...
Allergy shots, also known as immunotherapy, is a treatment that can help to reduce the severity of allergic reactions by gradually exposing the body to increasing amounts of the allergen over time. Th...
Education & Training
Dr. Nagarajan graduated from Madurai Medical College in Madurai, India in 1985. He completed his pediatric residency at Maimonides Medical Center in Brooklyn, New York and his fellowship in allergy and immunology at the University of South Florida in 1996.
Eisenstadt Allergy & Asthma

The practice was founded in 1940 by William Sawyer Eisenstadt, M.D., one of the nation’s founding fathers of modern allergy practice. Dr. Eisenstadt retired in 1991, after more than 50 years in the specialty.
Each physician at EAA has had thorough training and years of experience in the field of allergy and immunology.
All of our physicians are certified by the American Board of Allergy and Immunology, so the next time you are at any of our clinics you can be certain you will be in safe and experienced hands.