Between Chatfield State Park, the foothill trails near Littleton, and scenic mountain routes west of Denver, residents near Ken Caryl have endless opportunities to spend time outdoors during the summer. Hiking is one of Colorado’s favorite activities for families, runners, and weekend adventurers alike. But after a long day outside, many hikers discover unexpected skin irritation ranging from itchy red patches to painful blisters and swelling. Hiking rashes are surprisingly common in Colorado and ...