Flushing

A single arm, pilot study among individuals with rosacea and at least moderate flushing or rednesss will be enrolled in a 4-week trial of taVNS. The particicpants will be followed for an additional 4-weeks following the intervention period to evaluate the durability of the results

The goal of this clinical trial is to learn whether education plus genetic testing for ALDH2\*2 and ADH1B\*2 is feasible and acceptable and whether it influences modifiable health behaviors in East Asian American adults who experience alcohol flushing when they drink alcohol or have a family history of flushing. The main questions it aims to answer are: 1. Is providing education plus ALDH2\*2/ADH1B\*2 genetic testing feasible and acceptable in a clinical care context? 2. Does receiving genetic testing results plus education lead to changes in modifiable health behaviors compared with education alone? Researchers will compare education plus genetic testing (intervention arm) to education only (control arm) to see if adding genetic testing improves feasibility/acceptability and supports health behavior change. Participants will: 1. Complete an education module about alcohol flushing and ALDH2/ADH1B 2. Be randomized to either: (A) Receive genetic testing for ALDH2\*2 and ADH1B\*2 with results disclosure, or (B) Receive education only. 3. Complete follow-up measures about feasibility, acceptability, and modifiable health behaviors