Effect of SPG Block for Patients With Anxiety at Electronic Dance Music Festivals

The goal of this clinical trial is to learn about the effect of a sphenopalatine ganglion (SPG) block in anxious patients at electronic dance music festivals. The main question is:- Is an SPG block useful in reducing anxiety, in comparison to placebo?Participants will have lidocaine-soaked cotton tip applicator placed inside each nare for 10-minutes, or have a saline-soaked cotton tip applicator placed inside each nare for 10-minutes.Researchers compare the lidocaine-soaked intervention (SPG block) with the saline-soaked intervention (placebo) to see if it reduces anxiety in patients presenting at electronic dance music festivals with anxiety.

Inclusion Criteria:Festival attendees aged 18+A complaint of anxiety of at least 1 on a scale of 0 to 10 (11-point scale, where 0 represents "no anxiety" and 10 represents "worst anxiety imaginable").Exclusion Criteria:Known allergy to lidocaine (standard practice involves medical team members asking patients what allergies they have; we will not directly ask about lidocaine in order to keep participants blinded to interventions)Inability to insert cotton tip applicator through the nares (e.g., distorted nasal anatomy, active nosebleed, obstructed nasal passages)Inability to verbally report level of anxietyPrior administration of an oral or intravenous anti-anxiety medication (e.g., lorazepam, midazolam) by festival medical staff since arrival at the festival (would confound treatment effect)