Allergies and dizziness: the cause and treatment


If you feel dizzy, you may be wondering about the underlying cause. Dehydration, medications, and a variety of conditions can make you feel dizzy and nauseated.

While dizziness may seem like a mild condition, it can actually be very harmful to daily life. It can even be so serious that it leaves you in bed for hours or days.

Allergies are among the many causes of dizziness. An allergy is the response of the immune system to a foreign substance that is not usually harmful to your body. These foreign substances are called allergens. They may include certain foods, pollen or pet dander, to name a few.

Sinus congestion related to allergy can cause dizziness or a more severe type of vertigo called vertigo. Keep reading to find out what causes your dizziness related to allergy and how to treat it.

What causes allergy-induced dizziness?

Allergy-induced dizziness can be caused by substances called allergens. Allergens can be found both in the air and in the foods you eat.

Vertigo induced by allergy in the air

If you are allergic to certain substances transported by the air, such as dust, pollen and pet dander, your body begins to release chemicals called histamines to fight these intruders. These histamines are the cause of the symptoms that you know as allergy symptoms.

Typical allergy symptoms include sinus congestion, sneezing, itchy throat and cough.

Allergies affect the eustachian tube. The eustachian tube is essentially a tunnel that connects the middle ear with the back of the throat and helps regulate balance, while equalizing the pressure in the middle ear with the pressure of ambient air.

When you begin to experience symptoms in your ears, even with the annoying sense of obstruction that can make hearing difficult, your eustachian tube is often blocked with mucus.

When locked, you can no longer equalize the pressure in the ear and maintain balance in your body. These alterations of the middle ear can cause symptoms of dizziness in people suffering from allergies, colds and sinus infections.

Stunning can also be a symptom of allergies. Dizziness and vertigo are two specific symptoms that generally differ from each other. When you are dizzy, you feel that you may faint or faint, instead of feeling that the room is spinning (or that your head is spinning).

In general, lying down resolves dizziness, at least temporarily, while dizziness usually does not go away when you lie down.

Dizziness induced by food allergy

Dizziness and dizziness are sometimes associated with food allergies. It is a manifestation of the body's attempt to combat this strange substance, similar to the histamine reaction that occurs with allergies in the air.

If you regularly have symptoms of dizziness, allergies in the air may not be the cause. You may have an intolerance to gluten or wheat, or other food products.

Your symptoms may appear immediately after eating harmful foods or hours later, but true food allergies tend to appear quickly.

On the other hand, the slight "food intolerance" may not manifest itself for several hours or even days. For that reason, you may not associate your dizziness with food you have eaten recently. It may not even be discovered until the allergy tests reveal sensitivity.

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What is vertigo induced by allergy?

Vertigo is a severe form of dizziness that causes you to see the room as if it were spinning. Someone with vertigo may also feel that he is moving when he is really sitting or standing.

In the case of vertigo induced by allergies, the culprit is the accumulation of fluid in the middle ear.

It is important to keep in mind that while vertigo can be debilitating or disturbing, it is often treatable. Your doctor will probably perform a variety of tests to determine the cause.

If it is determined that the vertigo is related to allergic rhinitis, your doctor will provide the corresponding treatment or refer you to a specialist (usually a doctor who specializes in allergies or ears, nose and throat).

Since vertigo can be related to more serious problems, it is important to seek treatment as quickly as possible once you have experienced this symptom.

How is allergy-induced vertigo treated?

The cure for allergy-induced dizziness is usually to treat the cause, the allergy itself. Avoiding the allergen completely is the most effective way to treat an allergy. Unfortunately, it is not possible to completely avoid allergens in the air.

Prescription and over-the-counter medications are available to help relieve dizziness and other allergy symptoms. However, treating the underlying cause is usually a more effective way to get rid of dizziness forever.

First, your doctor will try to determine the cause of your dizziness. This is usually done by a traditional allergy test, with a detailed analysis of your particular allergens.

Food allergies are usually diagnosed through a process of elimination. Your doctor may ask you to participate in the so-called "elimination diet" to determine what food is causing your symptoms. From there, you can decide what treatments or dietary changes are necessary.


There are many options to combat allergy symptoms. Antihistamines are popular for short-term use and can be very effective in relieving congestion that may be causing your dizziness.

Antihistamines are also used to treat vertigo. Keep in mind that many antihistamines can cause drowsiness. It is important not to drive or operate machinery when you first take an antihistamine.

You should also avoid taking them with antidepressants, anti-anxiety agents, muscle relaxers, sleeping pills or alcohol. Talk to your doctor or pharmacist if you have any questions.

Apart from antihistamines, other types of medications to treat allergies or symptoms of allergies include:

  • corticosteroid pills

  • cromolyn sodium

  • nasal or oral steroid sprays

  • decongestants

  • leukotriene modifiers

Vaccines against allergy

In the long term, your doctor will probably want to treat the allergy that causes the histamine reaction. This can be done with prescription medications that are safe for daily use. It can also be done with injections for specially formulated allergies.

When you receive an allergy shot, you are actually injecting a small amount of allergen. This helps to desensitize your body to the allergen over time.

By gradually increasing your dose, your body adjusts. Your symptoms will diminish over time. Allergy shots are not currently available for food allergies.


You may need to consider a change in diet if your dizziness is related to food. A gluten-free, dairy-free or wheat-free diet can be recommended. There are many options on the market today to address these special dietary needs.

Your doctor can also check it for signs of celiac disease. This is a more severe form of gluten intolerance that requires avoiding gluten altogether in your diet or serious health complications can arise.


Dizziness can be a problem, but when allergies are the main cause, treatment can leave you free of symptoms. The key is to determine the reason for your dizziness and treat the cause, rather than the symptom itself.

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