At ENTACC, our patients are our priority.


Allergy immunotherapy stimulates the immune system with gradually increasing doses of the substances to which a person is allergic. The aim is to modify or stop the allergy by reducing the strength of the response. In treating the underlying cause, this approach provides sustained symptom prevention and has been shown to reduce the risk of developing asthma by desensitizing the body to the specific allergens identified.

Immunotherapy solution is prepared and given by one of two routes: sublingually (or under the tongue) or subcutaneously (allergy shot). By gradually increasing the doses, the patient responds by developing an immunity or tolerance to the allergens.

As a result of these immune changes, immunotherapy can lead to decreased, minimal or no allergy symptoms when exposed to the allergens. Allergy immunotherapy usually takes three to six months to a year to become effective, and treatments are usually required for three to five years.

Sublingual Immunotherapy (SLIT) is a highly effective, safe alternative to allergy shots, and is exciting because it offers the prospect of a cure for allergies. Adults and children can be treated with SLIT.Daily drops placed under the tongue at home replace visits to the office for allergy shots. These drops are taken daily for 3-5 years after which most patients can stop the drops without developing recurrent symptoms.In susceptible children, they have been proven to prevent the development of asthma. SLIT is not used to treat food or stinging insect allergies. The benefit and convenience of home treatments allow for greater compliance and improved allergy management. SLIT is ideal for children and active families, as well as for those suffering from chronic conditions. It can also be used by patients taking certain medications that contraindicate allergy shots. Our allergy doctors oversee your allergy vaccine, dosage, and improvement.

Erin O. from Downingtown, PA

“I had stopped taking my allergy medicine and ended up with the worse sinus infection of my life. The staff at Ear, Nose & Throat Associates of Chester County genuinely will provide you with the best care. I was overwhelmed by the kindness, concern, and sense of urgency everyone gave. My phone calls were returned promptly and time was made to see me in the office when it was an emergency.”

Connie J. from West Chester, PA

“I can say after years of coming to Ear, Nose & Throat Associates of Chester County, my relationship and trust with Dr. Marriotti has grown tremendously. He is personable, friendly and I appreciate his input with my hearing condition. The staff at Ear, Nose & Throat Associates of Chester County is always cheery and pleasant. I enjoy my visits and always leave feeling like I am in good hands.”

Dauna P. from University Lincoln, PA

“I am so grateful for the care Dr. Picariello has given for my complex and serious brain diagnosis. He has made such an impression on the way the process was handled. I shall never forget him and how humble he was when dealing with my condition. He is truly one of the best around and I am fortunate for his high ethical standards and professionalism.”

Kathy S. from Schwenksvile, PA

“The knowledge, encouragement, concern, and individual attention the doctors of Ear, Nose & Throat Associates of Chester County had demonstrated was far beyond my expectations. The office atmosphere is professional yet friendly. The doctors know their profession well and are able to explain in basic understandable terms. They made sure we were comfortable and took their time going over everything extensively.”

James B., from Coatesville, PA

“The allergy shot process has been a great experience and has prevented a reoccurrence of my nasal polyps, and decreased the need for my asthma inhaler. The allergy staff is excellent.”