Beyond ointments and creams, it may be necessary to administer medication when an emergency occurs. Packing any prescription medicine into a first aid kit can help keep those injured comfortable. Karen Lee, author of “Emergency Items for Your Storage and 72-Hour Emergency Kit” suggests including aspirin for pain, anti-diarrhea medicine and syrup of ipecac in case poison is ingested. For extreme allergic reactions, having an antihistamine such as Benadryl or an epinephrine auto-injector in your first aid kit is crucial. Allergy medications treat reactions to bites, stings or ingested food. “In addition, an ammonia inhalant can help revive a person who is unconscious, so add it to the kit,” Lee says.