Allergic diseases now affect between 20% and 25% of the global population, with the prevalence in Spain exceeding one-quarter of its citizens. As World Allergy Day highlights the rising burden of these chronic conditions, health systems face mounting pressure to address specialized diagnostic needs, long waiting lists, and the critical role of nursing in patient management and education.
The Rising Prevalence of Allergic Conditions
Allergic diseases are currently among the most common chronic conditions worldwide.
In Spain, the trends are particularly notable. Approximately eight million people in the country suffer from pollen allergies, and roughly 25% of the pediatric population presents with some form of allergic disease. Projections from clinical specialists suggest that if current environmental and lifestyle trends persist, up to 50% of the Spanish population could suffer from an allergic condition by 2050.
Challenges for the Healthcare System
The rapid increase in patients has strained existing allergy units, leading to significant delays in care. Silvia del Valle Fernández, an allergy nurse manager at Hospital Sant Joan de Déu in Barcelona and member of the SEICAP, notes that the system is struggling to balance high demand with finite resources.
"We are seeing significant waiting lists for both initial consultations and follow-up visits," says Del Valle Fernández. This backlog also extends to essential diagnostic and therapeutic procedures, such as oral food challenges and immunotherapy, which require dedicated clinical time and specialized oversight.
To address these gaps, Elena Berbel Romero, an allergy nurse at the Hospital General Universitario de Castellón, emphasizes the need for better integration. "We are working to strengthen our allergy units by establishing clear protocols of coordination between Primary Care and hospital-based services," Berbel Romero explains. A key part of this strategy involves elevating the role of specialized nursing, which is essential for managing patient safety and improving long-term outcomes.
The Essential Role of Nursing in Allergy Care
Nurses in allergy departments have moved beyond purely technical tasks, such as performing skin prick tests or administering injections, toward a role centered on advanced practice and patient education.
Health Education and Treatment Adherence
Education is a primary tool for managing chronic allergic disease. Nurses provide patients with the knowledge to identify triggers, use rescue medication correctly, and recognize the early signs of anaphylaxis. According to Del Valle Fernández, continuous educational interventions lead to:
- Increased adherence to prescribed treatments.
- Reduced rates of hospital admissions and emergency department visits.
- Improved quality of life and patient satisfaction.
- Lower rates of school and work absenteeism.
Despite these benefits, treatment adherence remains a hurdle. Clinical guidelines for asthma, for example, indicate that up to 50% of children do not consistently take their maintenance medication.
Immunotherapy and Safety Protocols
The administration of subcutaneous immunotherapy—a treatment aimed at modifying the course of conditions like allergic rhinitis and asthma—requires rigorous safety standards. Before treatment, nurses verify that patients are clinically stable and free from contraindications.
"Because immunotherapy carries a risk of systemic reactions, including anaphylaxis, it must be performed in a controlled environment by trained professionals," says Del Valle Fernández. After the injection, nurses monitor the patient for delayed reactions and provide clear instructions for home care, ensuring continuity of safety after the patient leaves the clinic.
Future Directions for Allergy Nursing
The future of the specialty lies in the adoption of an "advanced practice" model. As patients present with increasingly complex, multi-system allergies, the demand for specialized nursing skills—such as interpreting molecular diagnostics and managing biological therapies—will continue to grow.
"The modern allergy nurse must be competent in assessing patients holistically, applying evidence-based protocols, and making rapid clinical decisions," says Del Valle Fernández. By moving toward a more autonomous and proactive role, nursing teams are positioning themselves as the backbone of allergy care, essential for maintaining the quality of service as the number of affected patients continues to rise.