Does low dose antigen immunotherapy (LDA/LDI) hurt?

Low dose antigen immunotherapy (LDA/LDI) requires 1-3 injections within a single visit. These injections are given intradermally, typically into the volar surface of the forearm. Due to the location of the injections, and the superficial nature of the injections, patients typically report stinging during and/or shortly after the injection. Typically, this sensation does not linger for more than a few minutes. However, you may experience itching, swelling, or discomfort at the site of injection following the injection; typically, this sensation subsides within 24 hours.