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.