Burger, Milkshake Cause Illness - In-N-Out, Prescott Arizona

3040 Arizona 69, Prescott, 86301 Arizona, United States

Last night my sister had a regular burger and a strawberry milkshake around 6:30 and she started having violent vomiting around 10:30. It's now 10 in the morning and it's still going on. It's been going on all night. She was throwing up almost every 20 minutes throughout the night. She's 22 and healthy. | Symptoms: Nausea, Diarrhea, Vomiting