Allergic Reactions

Editor’s Note: In Healio Allergy/Asthma’s column, “Food Allergy: Fact vs. Fiction,” Douglas H. Jones, MD, breaks down what’s true and what’s myth for a variety of topics related to food allergies. If you have a question you would like answered in this column, email Jones at rmaaimd@gmail.com or Richard Gawel at rgawel@healio.com.

The FDA has accepted a new drug application for neffy, a nasal spray designed to treat type I allergic reactions without an injection in adults and children who weigh 30 kg or more, according to an ARS Pharmaceuticals press release.

Patients with food-dependent exercise-induced allergic reactions such as anaphylaxis can benefit from avoiding culprit foods before workouts, according to a review published in The Journal of Allergy and Clinical Immunology: In Practice.

The Food Allergy Severity Score, or FASS, quantified differences in the severity of allergic reactions to animal-source foods and to tree nuts and legumes, according to data from the EuroPrevall study.

Researchers identified fragrance additives that are most likely to cause either immediate or delayed allergic reactions, according to data published in the Journal of the American Academy of Dermatology.

Delayed hypersensitivity to vaccines is not uncommon but also does not typically contraindicate further vaccination, and patch testing can be used to determine the cause, according to a study published in Allergy & Asthma Proceedings.

An international team of researchers has developed hair dyes that may be less likely to cause the allergic reactions in users that can occur with traditional dyes, according to a study published in ACS Sustainable Chemistry & Engineering.

Researchers identified an association between a self-reported history of high-risk allergy and an increased risk for allergic reactions after receipt of an mRNA COVID-19 vaccine.

Although the CDC lists a severe or immediate allergic reaction to the first dose of an mRNA COVID-19 vaccine as a contraindication for the second dose, a study found most individuals with a dose one reaction received dose two safely.

A panel of experts at the virtual American Academy of Allergy, Asthma and Immunology Annual Meeting highlighted current evidence on allergic reactions to available COVID-19 vaccines and how to assess patients who have had a reaction.