All about food allergy rashes

All about food allergy rashes

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About 50 million children get allergies right from a young age. Food allergy rash is a common symptom if you are allergic to any foods. All the food allergy reactions don’t cause rashes. A rash tends to appear shortly after having the food. You can tell you are suffering from peanut allergy if you develop any of the above symptoms:

food allergy rashes

  • Itching in the eyes
  • Redness and swelling
  • Vomiting, etc.

Causes of food allergies rashes

Food rashes are caused by intaking food not very suitable to the immune systems of the body. Further, the immune system fights all the harmful substances. The most common allergens are eggs, peanuts, milk, soy, wheat, shellfish, etc. There are also chances of cross-reactivity. For instance, if you are allergic to shellfish, you might be allergic to seafood as well. Food allergies can be easily detected right from childhood. Doing skin tests and blood tests help in proving food allergies. Likewise, Allergies can develop in adults as well, but this is very rare.

The only way of preventing food allergies is to avoid the food item altogether. Read the food labels before purchasing groceries.

Food allergy rash treatments

Food allergy rash stops as soon as the allergic reaction in the body stops.

1. Washing up

If you feel rashes growing in the body, wash up your face and body or any part in contact with the food. This will help in preventing any more rashes from happening. Also, some people prefer taking a shower to get relief.

2. Applying a soothing gel

Suppose the rash is getting too swelling and causes itching; it’s best to apply a soothing gel onto the skin. There are various OTC creams like hydrocortisone.

3. Taking an antihistamine

You can take oral antihistamine while going to sleep. Besides, it helps in providing relief from inflammation, pain, and itchiness.

4. Speaking to a doctor

Suppose you are suffering from a peanut allergy; it’s best to consult the dietician to balance your diet. They help you in identifying all the allergens to determine the best OTC for the body.

What is the duration that the rash lasts in the body?

A food allergy rash might not appear in the body as long as the food doesn’t react. Depending on the amount you take, it might last for few hours. Some people can develop rashes within minutes. Secondly, the scratching will stay for a bit longer. Once the immune system calms down, the reactions also subside. The rashes can subside in a day, or it might take few hours also.

Reports suggest that it is even possible to have a second wave of allergic reactions lasting up to four hours. But this turns out to be very rare. Call out to the doctor if the rashes persist.


Food allergies and food intolerances are two very different concepts. Food intolerance usually causes digestive problems and nothing more than that. If you are having severe allergic reactions, consult with the doctor immediately.

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