An allergy develops as a response to environmental irritants that are usually considered safe. Dust mites, pet dander, and foods are popular allergens that trigger such a response. However, anything can be an allergen if the immune system reacts negatively to it. The intensity of the allergy reaction can range from mild irritation to an emergency situation called anaphylaxis. Although most allergies do not have a permanent cure, some management options can relieve common symptoms.

Symptoms
Irritation and inflammation are common signs, but the exact symptoms vary depending on the trigger. Here are some allergy signs and symptoms based on the allergen:

Prescription-related reaction: Here, one experiences rashes, hives, or breathing problems after taking a certain prescription. The typical signs include wheezing, swollen mouth, lips, and face, and rashes and itching.

Response to insect stings: A sting can cause redness, swelling, and pain at the site. But one may be allergic to insect stings if they experience wheezing, a large amount of swelling at the site, and breathing difficulties.

Food allergy: Here, one experiences an aggressive immunological response to a specific ingredient, with symptoms like vomiting, swollen tongue, diarrhea, shortness of breath, and stomach cramps.

Causes
An allergy develops when the immune system misidentifies a typically safe substance as a harmful intruder. Following this, the immune system creates antibodies that continue to look for the intruder. These antibodies may cause chemicals, including histamine, to be released when subjected to the allergen again, leading to allergy symptoms. Allergic reactions are a result of exposure to the following irritants:

• Airborne allergens like animal dander or dust mites
• Foods like milk, gluten, or seafood
• Stings from insects like bees or wasps
• Prescription options for different ailments

Best foods
One should avoid common food allergens when figuring out the exact trigger. Here are a few foods that can help with allergies:

Tropical fruits: These are rich in vitamin C and bromelain, which can ease asthma symptoms.

Fatty fish: Fish containing omega-3 fatty acids have been shown to reduce allergic symptoms. However, seafood should be avoided if one is sensitive to it.

Onions: The vegetable contains quercetin, a natural substance that reduces the body’s response to histamine.

Regional honey: Honey in small amounts is believed to help build resistance to the effects of seasonal allergies.

Treatment options
Doctors may recommend the following allergy treatment options:

Avoiding allergens: Doctors can help determine and eliminate triggers from the daily routine.

Prescriptions: Prescription options, including nasal sprays and eye drops, can relieve common symptoms of allergies.

Immunotherapy: Here, tolerance to allergens is developed by introducing tiny amounts of the allergen to the body.

Remedies
The following at-home allergy remedies can relieve a few symptoms:

• Saline nasal irrigation or rinsing the nostrils with a salt and water solution can help avoid sinus congestion. Using a neti pot or a squeeze bottle helps clear irritants and mucus in the nasal passage.
• Washing bedding and stuffed animals in hot water, regularly using a vacuum with an air filter, and switching from carpets to hard flooring, can reduce exposure to dust mites or pet dander.
• Using ventilation fans and dehumidifiers can lower the amount of moisture in moist places like the bathroom and kitchen, reducing the risk of allergic reactions.

One should consult a doctor if they are experiencing one or more signs of an allergy.