For anyone out aloft who either has a medical condition or allergic reaction to certain things such as bees, penicillin, etc that would require quick or special treatment on the trail how should we communicate it safely? For example... you come across a hiker that is unresponsive (bee sting) and you don't know that he carries an EpiPen for such matters somewhere on them. No cell phone signal and no PLB (Personal Locating Beacon) included. Naturally (disclaimer) I'm not saying diagnose and treat if your not a doctor but rather is there a unified/universal way that we can communicate to another hiker or first responder that we have a condition ? I know that there are some wrist bands or items in use by some organizations or fields but a thru-hiker or just many people may not wear them on hikes due to discomfort. Is there a way to put say a red band on the top left shoulder strap to signify a laminated first aid card that would be stored say in the hip belt? Something like : Mike Smith 51yrs Old 123 Soldier Lane Northcutt, AZ 55555 Emergency Contact Number: (123) 456-7890 Past heart attack /2012 Allergic to bee stings EpiPen In hip Belt/Left side I mention this because I'm unaware of any universal means that hikers use and it would be a great preparedness tool for many. It's also just a good thing to think of in advance especially if solo hiking.