Tirico said his nose and throat "clogged up" and swelled. He added that the allergy can affect your breathing as well. Tirico decided he could not perform his duties as a broadcaster due to the reaction. He took an EpiPen shot — a common treatment for people experiencing an allergic reaction — and was seen by EMTs.

The 58-year-old sportscaster appeared at Churchill Downs to help cover the horse race but had to abruptly leave early

After abruptly leaving the set of NBC's coverage of the 151st running of the Kentucky Derby on Saturday afternoon, host Mike Tirico revealed through a post on X (formerly Twitter) that his exit was due to a "significant reaction to [his] nut allergy".