Does your child have specific allergies? Then AllerMates "I Have Allergies" Writable Wristbands serves as an important reminder to your child's teachers, caregivers, friends, relatives, and general public about your child's allergy. This cool and fashionable wristband is really easy to use; just write the specific allergies along with emergency and medical contact information on the back of the wristband with a ball-point pen. The final step is to boil the wristband for one minute in hot water to make the ink permanent.