Once you have found out that you or a member of your family suffers from food allergies it is time to start learning how to deal with this allergy on a day to day basis.  While this might seem a little daunting once you understand more about the particular allergy, learning to live with it is manageable, but it is going to take a lot of vigilance.
The first step is to learn more about the particular food allergy once the person in question has been diagnosed.  There are numerous resources both online and off that can supply you with plenty of information regarding your allergy.

Your physician is an excellent source of medical information and can probably give you good general information about what to avoid eating but knowing what not to eat is only the beginning.  How much you are going to have to adapt your life and that of everyone around you can depend on the allergy and how severe it is.  You are going to have to make some changes in the way you live whether it is you or a family member that has the allergy.

In your home you will need to change the way you shop, for most people even the smallest amount of contact can cause a reaction.  With this in mind it is best to remove any food products that could possibly contain even the smallest amount of the allergen.  This means not only reading the labels but doing some online research too.

Grocery shopping can be a challenge as you will have to learn to read the labels of everything you buy.  Many of the foods you are used to buying may contain ingredients that are on your list of allergens.  Fortunately many of the foods are labeled as containing the common allergens; while this is the case, there are many lesser allergens or allergen containing items that are not listed. When it comes to items such as these you will need to do your own homework, to understand what foods are not on your safe list.

Many of the processed foods we eat contain ingredients that are not labeled properly, for instance legumes can also mean Lupines.  The Lupine is a member of the legume family but causes similar allergic reactions to peanuts in peanut allergic individuals. There are many foods that use peanut flour including many cooking sprays.  Most baked foods contain eggs and or milk products.  You may find that you will need to start shopping in a health food store that carries specialized products designed for these allergies.

You will need to let everyone in your family and friends know about the allergy so that they can make the necessary adjustments for when you eat at their homes.  This also applies to schools, daycares or baby sitters if it is your child who is allergic.  The more people that are aware of the persons allergy the lower the risk is that they will be exposed to it and have a reaction.
No matter how much care is taken to remove all traces of allergens there still exists the possibility of accidental exposure.  Make sure that you always have the appropriate medications on hand such as anti histamines or for worst cases an Epi-pen to administer epinephrine.  All members of your family need to be taught not only how to recognize the symptoms of an allergic reaction, but how to administer the proper medications to deal with it should it occur.