What does a food allergy skin rash look like
The symptoms of an allergic reaction can vary from mild to severe. If you become exposed to an allergen for the first time, your symptoms may be mild. These symptoms may get worse if you repeatedly come into contact with the allergen.
Symptoms of a mild allergic reaction can include:
- scratchy throat
- hives (itchy red spots on the skin)
- nasal congestion (known as rhinitis)
- watery or itchy eyes
Severe allergic reactions can cause the following symptoms:
- dizziness (vertigo)
- difficulty swallowing
- flushing of the face
- nausea or vomiting
- abdominal cramping or pain
- heart palpitations
- fear or anxiety
- swelling of the face, eyes, or tongue
- difficulty breathing
- pain or tightness in the chest
A severe and sudden allergic reaction can develop within seconds after exposure to an allergen.
This type of reaction is known as anaphylaxis and results in life-threatening symptoms, including swelling of the airway, inability to breathe, and a sudden and severe drop in blood pressure.
If you experience this type of allergic reaction, seek immediate emergency assist. Without treatment, this condition can result in death within 15 minutes.
Your immune system is responsible for defending the body against bacteria and viruses. In some cases, your immune system will defend against substances that typically don’t pose a threat to the human body.
These substances are known as allergens, and when your body reacts to them, it causes an allergic reaction.
You can inhale, eat, and touch allergens that cause a reaction. Doctors can also use allergens to diagnose allergies and can even inject them into your body as a form of treatment.
The American Academy of Allergy, Asthma & Immunology (AAAAI) reports that as numerous as 50 million people in the United States suffer from some type of allergic disease.
How is an allergic reaction treated?
If you experience an allergic reaction and you don’t know what’s causing it, you may need to see your doctor to determine what the cause of your allergy is.
If you own a known allergy and experience symptoms, you may not need to seek medical care if your symptoms are mild.
In most cases, over-the-counter antihistamines, such as diphenhydramine (Benadryl), can be effective for controlling mild allergic reactions.
If you or someone you know experiences a severe allergic reaction, you should seek emergency medical attention.
Check to see if the person is breathing, call 911, and provide CPR if needed.
People with known allergies often own emergency medications with them, such as an epinephrine auto-injector (EpiPen). Epinephrine is a “rescue drug” because it opens the airways and raises blood pressure.
The person may need your assist to ister the medication. If the person is unconscious, you should:
- Lay them flat on their back.
- Elevate their legs.
- Cover them with a blanket.
This will assist prevent shock.
Shop over-the-counter antihistamines for controlling mild allergic reactions.
What is the long-term outlook?
If you own a known allergy, preventing an allergic reaction will improve your outlook. You can prevent these reactions by avoiding the allergens that affect you.
If you own serious allergic reactions, you should always carry an EpiPen and inject yourself if symptoms happen.
Your outlook will also depend on the severity of your allergy. If you own a mild allergic reaction and seek treatment, you’ll own a excellent chance of recovery. However, symptoms may return if you come into contact with the allergen again.
If you own a severe allergic reaction, your outlook will depend on receiving quick emergency care. Anaphylaxis can result in death. Immediate medical care is necessary to improve your outcome.
What causes an allergic reaction?
Doctors don’t know why some people experience allergies.
Allergies appear to run in families and can be inherited. If you own a shut family member who has allergies, you’re at greater risk for developing allergies.
Although the reasons why allergies develop aren’t known, there are some substances that commonly cause an allergic reaction. People who own allergies are typically allergic to one or more of the following:
How is an allergic reaction diagnosed?
Your doctor can diagnose allergic reactions. If you experience symptoms of an allergic reaction, your doctor will act out an exam and enquire you about your health history. If your allergic reactions are severe, your doctor may enquire you to hold a journal that details your symptoms and the substances that appear to cause them.
Your doctor may desire to order tests to determine what’s causing your allergy.
The most commonly ordered types of allergy tests are:
- skin tests
- challenge (elimination-type) tests
- blood tests
A skin test involves applying a little quantity of a suspected allergen to the skin and watching for a reaction. The substance may be taped to the skin (patch test), applied via a little prick to the skin (skin prick test), or injected just under the skin (intradermal test).
A skin test is most valuable for diagnosing:
Challenge testing is useful in diagnosing food allergies. It involves removing a food from your diet for several weeks and watching for symptoms when you eat the food again.
A blood test for an allergy checks your blood for antibodies against a possible allergen. An antibody is a protein your body produces to fight harmful substances. Blood tests are an option when skin testing isn’t helpful or possible.