If you’ve ever eaten something and experienced any kind of reaction, such as a rash or issues with the tongue swelling, then you might be allergic to a certain kind of food. You won’t know what kind of food you’re allergic to unless you have a skin allergy test Hillsborough NJ doctors perform that will pinpoint exactly what’s causing the reactions. The process is rather simple and doesn’t usually take that long to complete. Extracts of common foods that people are allergic to as well as other items, such as dust and pollen, are placed on the skin. A grid is drawn on the skin before the extracts are used so that the doctor will be able to determine which extract causes a reaction. If you are allergic to something, then a rash might develop right away. The skin could also begin to itch and feel like you have been bitten by an insect.
The reaction that appears is how the doctor will know what you are allergic to and what you aren’t allergic to so that the proper medications can be prescribed. Some people are allergic to several things that they are around in life while others are only allergic to a few that they might not come into contact with many times at all. There are a few ways that allergens can be used to set off a reaction with the skin. One is a classic scratch test on the skin. The skin on the forearm or the back will be cleaned with an alcohol wipe. Labels will be marked on the skin so that the doctor and nurses know which extract is placed in which location. A small drop of each extract is then placed on the skin in the labeled area. The skin is then lightly scratched to determine if there is a reaction. Other methods include a small amount of the allergen being injected under the skin or a patch being placed on the skin. A blood test could be ordered, but that’s usually to detect a specific allergy, such as a type of nut or pollen.