Allergen Immunotherapy: Benefits, Types and Uses for Allergic Diseases | Professor Waheed Haisam

Allergic diseases can affect breathing, sleep, and daily activities, particularly when symptoms persist or repeatedly return. Because allergies vary in their triggers and severity, treatment must be tailored to each patient's condition. Allergen immunotherapy, sometimes called allergy shots or allergy desensitization, is a treatment option that may help selected patients become less sensitive to specific allergens over time. Professor Waheed Haisam emphasizes the importance of medical assessment to determine whether this treatment is appropriate for an individual patient.

Professor Waheed Haisam’s Clinics

Mohandessin Clinic

18 Gool Gamal Street, off El-Batal Ahmed Abdel Aziz Street, above BIM Market, First Floor.

📞 Contact: 01026664370

Fifth Settlement Clinic

90th Street, HCC Mall, behind Air Force Hospital.

📞 Contact: 01006665210

Ismailia Clinic

74 El-Geish Street, opposite the Army Officers Club.

☎️ Contact: 0643918787

What Is Allergen Immunotherapy?

Allergen immunotherapy is a treatment designed to reduce the immune system’s response to a specific substance that triggers allergy symptoms. Examples may include certain pollen types, dust mites, or other identified allergens.

Unlike medications that mainly relieve symptoms, immunotherapy involves administering carefully controlled doses of a relevant allergen according to a medical protocol. The aim is to help the immune system develop greater tolerance to that allergen over time.

This treatment is used in selected cases and is not suitable for every allergy or every patient. Assessment usually includes a review of symptoms and medical history, and allergy testing may be needed to identify the relevant triggers.

Why Is Allergen Immunotherapy Important?

One potential benefit of immunotherapy is that it targets the immune response to a specific allergen rather than only addressing symptoms after exposure.

For suitable patients, potential benefits may include:

• Reduced symptom severity: It may reduce symptoms caused by exposure to the allergen being treated.

• Fewer symptom flare-ups: Some patients may experience fewer episodes of allergic symptoms.

• Improved quality of life: Better symptom control may support sleep and everyday activities.

• Reduced need for some medications: Depending on the response, some patients may be able to reduce certain symptom-relief medications under medical supervision.

• Benefits that may persist after treatment: Some patients may continue to benefit after completing a treatment course, although outcomes vary by allergy type and individual response.

Results differ between patients. Immunotherapy does not guarantee that an allergy will disappear completely or that all allergy medications can be stopped.

Which Allergic Diseases May Benefit From Immunotherapy?

Immunotherapy may be considered for certain allergic conditions after the relevant trigger has been identified and the treatment's suitability has been assessed.

Allergic Rhinitis

Symptoms may include repeated sneezing, a runny or blocked nose, and nasal itching, particularly after exposure to allergens such as dust mites or pollen. If a specific allergen is linked to the symptoms, a clinician can assess whether immunotherapy may be appropriate.

Allergic Eye Symptoms

Allergies may cause itchy, red, or watery eyes and can occur alongside allergic rhinitis. Immunotherapy may be an option for selected patients when the identified allergen and treatment are suitable.

Some Cases of Allergic Asthma

Asthma may be associated with specific allergens in some patients. However, immunotherapy requires careful assessment of the allergy and the degree of asthma control. It is not a replacement for prescribed asthma controller medication and must not be used to treat an acute asthma attack.

Allergy to Insect Stings

Venom immunotherapy may be recommended for selected patients, particularly those who have experienced a severe systemic allergic reaction to certain insect stings. It requires specialist assessment because preventing future serious reactions is an important consideration.

Immunotherapy is not used in the same way for every allergy. The allergen, product, dose schedule, and duration depend on the diagnosis and relevant medical recommendations.

What Are the Types of Allergen Immunotherapy?

Allergen immunotherapy can be delivered in different ways. The appropriate option depends on the allergen, the available treatment, and the patient's health.

Subcutaneous immunotherapy: This involves injections containing controlled doses of allergens. Doses may be increased gradually according to a prescribed schedule before moving to a maintenance phase.

Sublingual immunotherapy: Certain preparations are placed under the tongue according to the product instructions and the clinician's guidance.

These approaches are not suitable for every allergen, and recommendations vary according to the allergen and the specific product. Treatment should not be started without an appropriate medical assessment.

How Is a Patient Assessed for Immunotherapy?

Assessment begins with understanding the symptoms and identifying when they occur. The clinician may ask whether symptoms are seasonal, related to a particular environment, or triggered by contact with a specific substance.

The evaluation may include:

• Reviewing the medical history, symptoms, and frequency of flare-ups.

• Identifying possible allergy triggers.

• Performing allergy tests when indicated, such as skin testing or blood tests for specific IgE antibodies.

• Reviewing previous treatments and the patient's response.

• Assessing overall health and other conditions, particularly asthma.

A positive allergy test alone does not automatically mean that immunotherapy is needed. Test results must be considered alongside the patient's symptoms and actual exposure to the allergen.

How Long Does Allergen Immunotherapy Take?

Immunotherapy generally requires time before its benefits become apparent and is not intended to provide immediate relief during an allergic reaction.

The duration depends on the treatment type, the allergen, and the patient's response. Many respiratory allergen immunotherapy programs may continue for approximately three years or longer, depending on the treatment plan and medical assessment.

During treatment, the clinician monitors symptoms, response, and possible adverse effects. The plan may be reviewed as the patient's condition changes.

Patients should not stop treatment or change doses without consulting their treating clinician.

Is Allergen Immunotherapy Safe?

Allergen immunotherapy can be appropriate for selected patients when administered under medical supervision, but side effects can occur and vary according to the treatment method and product.

Local reactions, such as redness, swelling, or itching at the injection site, may occur. Other reactions are possible depending on the treatment. Rarely, a severe allergic reaction can develop, which is why injections must be administered according to appropriate medical procedures and followed by the observation period specified by the treating team.

Patients should tell their clinician about existing medical conditions, medications, and previous allergic reactions. Conditions such as uncontrolled asthma may make starting or continuing immunotherapy unsuitable at a particular time.

Can Immunotherapy Replace Allergy Medication?

Not necessarily. Patients may need to continue taking allergy medications during immunotherapy, particularly before the treatment has produced its full benefit or when they remain exposed to triggers.

Any changes to medication depend on symptom severity, treatment response, and medical assessment. Asthma medications and other prescribed treatments should not be stopped without medical advice.

The aim is to manage allergy symptoms safely by determining the appropriate role of immunotherapy and other treatments for each patient.

When Should You Consult an Allergy Specialist?

Medical assessment is recommended when allergy symptoms are persistent or recurrent, interfere with sleep or daily activities, or do not improve sufficiently with usual treatment.

A consultation may also help when a specific allergen is suspected and the patient wants to understand available options, including whether immunotherapy is appropriate.

Severe breathing difficulty, swelling of the tongue or throat, or marked dizziness after possible allergen exposure may indicate a serious allergic reaction. Seek emergency medical assistance immediately if these symptoms occur.

Professor Waheed Haisam – Assessment of Allergic Diseases

Allergy treatment depends on identifying the trigger, understanding the symptoms and their severity, and reviewing the response to previous treatment. Allergen immunotherapy may be suitable for selected patients, but it requires an accurate diagnosis, an individualized treatment plan, and appropriate follow-up.

You can contact Professor Waheed Haisam’s clinics to inquire about an appointment and discuss the assessment of allergy symptoms and suitable treatment options.

Mohandessin Clinic: 18 Gool Gamal Street, off El-Batal Ahmed Abdel Aziz Street, above BIM Market, First Floor.
📞 01026664370

Fifth Settlement Clinic: 90th Street, HCC Mall, behind Air Force Hospital.
📞 01006665210

Ismailia Clinic: 74 El-Geish Street, opposite the Army Officers Club.
☎️ 0643918787

Frequently Asked Questions About Allergen Immunotherapy

Can allergen immunotherapy cure allergies permanently?

It may reduce symptoms and improve allergy control in some patients, but outcomes vary and complete, permanent disappearance of allergy cannot be guaranteed.

Is immunotherapy suitable for every type of allergy?

No. It is used for selected allergies after identifying the relevant allergen and assessing whether treatment is appropriate.

How long does it take to see results?

Improvement may take several months, and treatment may continue for years depending on the allergy and treatment plan.

Can allergy medications be stopped after starting immunotherapy?

Medication should not be stopped or changed without consulting the treating clinician. Some patients need to continue their medications during treatment.

Is allergen immunotherapy safe?

It can be used safely in appropriately selected patients under medical supervision, but side effects can occur and severe allergic reactions are possible, although rare.

Allergen immunotherapy is an important treatment option for certain allergic diseases. It aims to modify the immune response to specific allergens and may reduce symptoms over time. Its suitability depends on accurate diagnosis, appropriate patient selection, adherence to the treatment plan, and medical follow-up.