First aid kits are a must have for every home. First aid kits are necessary so that you can treat ailments and injuries that happen at home. From the minor ailment to the more serious injury a first aid kit can help reduce the risk of infection or the severity of the injury. It might benefit you and your family to attend a first aid class through the Red Cross in order to know how to utilize all the supplies in a first aid kit. Another good place to have a first aid kit is when you go out with your family. You can store it in your vehicle so if something happens when you are out somewhere you can start treating the problem immediately.
(Source: http://www.safetyed.org/safetyebook_firstaidkits.html#.XxU0t54zbIU)
You may also wish to include the following supplies, as well as medication for common ailments: