If this rash appears after gardening, the best thing to do is wash your skin with cold water and a mild soap.Let your skin air-dry, and the rash should go away after an hour or so. If it doesn't, or it's really bothering you, apply an over-the-counter hydrocortisone cream to reduce inflammation and relieve the itching and burning. If the rash still doesn't go away, it's best to see your doctor. To prevent this bizarre rash next time, wear gloves when handling your plants.
Have you ever gotten a rash after gardening?