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Dermatology · Desensitisation

Pollen desensitisation

Pollen desensitisation, or allergen immunotherapy, is a long-term treatment that gradually accustoms the body to the pollens responsible for allergic rhinitis or conjunctivitis, in order to reduce symptoms lastingly.

Written by Dr A. Turcarelli, dermatologist and allergist Updated 6 January 2026 5 min read

Désensibilisation aux pollens

Introduction

It is mainly intended for patients with allergic rhinitis, allergic conjunctivitis and sometimes allergic asthma caused by pollen (trees, grasses, weeds).

Symptoms

  • Moderate to severe seasonal allergic rhinitis
  • Associated allergic conjunctivitis
  • Symptoms poorly controlled by standard treatments
  • Significant discomfort during the pollen season
  • Repeated use of anti-allergy medication
  • Mild to moderate allergic asthma associated with pollen

Causes

Diagnosis

  1. Precise identification of the pollen or pollens responsible
  2. Clear correlation between symptoms and the pollen season
  3. Appropriate allergy tests (skin and/or blood)
  4. Assessment of severity and clinical impact
  5. Checking for contraindications

Treatments

Management

Confirm that desensitisation is appropriate

To choose the most suitable form of treatment

Explain how the treatment works

Ensure regular, safe follow-up

To assess effectiveness season after season

Frequently asked questions

Consultation for pollen desensitisation

Consultation with a confirmed diagnosis and a written treatment plan.

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