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Sensitization to propolis in 1255 children undergoing patch testing.

Francesca Giusti1, Roberta Miglietta, Patrizia Pepe

  • 1Department of Dermatology, University of Modena and Reggio Emilia, 41100 Modena, Italy.

Contact Dermatitis
|December 21, 2004
PubMed
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Propolis allergy is common in children, affecting 5.9% of those tested. Due to its high sensitization rate, propolis should be avoided in pediatric topical products.

Area of Science:

  • Dermatology
  • Allergology
  • Pediatrics

Background:

  • Propolis, a natural resin, is used in various topical products.
  • Contact sensitization to propolis can occur, particularly in children.
  • Understanding the prevalence and characteristics of propolis allergy in pediatric populations is crucial.

Purpose of the Study:

  • To determine the frequency and clinical features of contact sensitization to propolis in children.
  • To assess trends in propolis allergy over an eight-year period.
  • To identify potential co-sensitivities associated with propolis allergy.

Main Methods:

  • Patch testing with 20% propolis petrolatum was performed on 1255 children suspected of allergic contact dermatitis.
  • Data was collected over an 8-year period (1995-2002).

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  • Statistical analysis was used to evaluate frequency, distribution, trends, and associations.

    • Main Results:

    • A positive reaction to propolis was observed in 5.9% of the children.
    • Propolis allergy was more frequent in boys than in girls.
    • Dermatitis commonly affected the face, hands, and limbs, with a noted increase in annual frequency.
    • A significant association was found with balsam of Peru sensitivity.

    Conclusions:

    • Propolis exhibits a high rate of contact sensitization in children.
    • The findings suggest that propolis should be excluded from topical products intended for pediatric use.
    • Further research may explore specific allergens within propolis responsible for sensitization.