Be informed about you food allergens
It is good to know which particular type of food or ingredients you are allergic to. This will not only be good for you but others will also be informed and avoid serving you anything that may contain such items.
Abstaining from allergic food
If you abstain from all those dishes or food types that you are allergic to, it is can protect you against any trouble pertaining to a deadly condition such as anaphylaxis.
Medications for a possible emergency situation
It is not possible that you are always aware of what is being served to you and in order to avoid any untoward situation, it is good to always keep prescribed medications along with you.
Being in a restaurant or hotel
If you are somewhere in a restaurant or a hotel to eat, then make sure you know what you are eating. It is good to ask the chef to exclude any allergens from the dish that you have ordered.