Wearing medical alert jewelry is an important step you can take to protect yourself in the event of an emergency medical situation. Anyone with diabetes, allergies, (such as food allergies and penicillin allergies), asthma, heart conditions, lymphedema and bariatric patients should be wearing a medical alert bracelet. This will be very helpful in an emergency medical situation. Medical tags can be engraved with up to 5 lines with 20 spaces or characters per line. Medical alert bracelets can help you.