Spreading Allergic Contact Dermatitis to Tea Tree Oil in an Over-the-Counter Product Applied on a Wart

Tea tree oil is an essential oil obtained by distillation from the leaves and terminal branchlets of <i>Melaleuca alternifolia</i> and is now present in numerous products for body care and self-medication. We report a case of allergic contact dermatitis to tea tree oil in a young man who...

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Main Authors: Francesca Ambrogio, Caterina Foti, Gerardo Cazzato, Edoardo Mortato, Stella Mazzoccoli, Anna Paola De Caro, Nicoletta Cassano, Gino Antonio Vena, Gianfranco Calogiuri, Paolo Romita
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Medicina
Subjects:
Online Access:https://www.mdpi.com/1648-9144/58/5/561
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author Francesca Ambrogio
Caterina Foti
Gerardo Cazzato
Edoardo Mortato
Stella Mazzoccoli
Anna Paola De Caro
Nicoletta Cassano
Gino Antonio Vena
Gianfranco Calogiuri
Paolo Romita
author_facet Francesca Ambrogio
Caterina Foti
Gerardo Cazzato
Edoardo Mortato
Stella Mazzoccoli
Anna Paola De Caro
Nicoletta Cassano
Gino Antonio Vena
Gianfranco Calogiuri
Paolo Romita
author_sort Francesca Ambrogio
collection DOAJ
description Tea tree oil is an essential oil obtained by distillation from the leaves and terminal branchlets of <i>Melaleuca alternifolia</i> and is now present in numerous products for body care and self-medication. We report a case of allergic contact dermatitis to tea tree oil in a young man who was applying a lotion containing tea tree oil on a wart localized on the plantar aspect of the right big toe, which had previously been treated with cryotherapy. He developed a severe eczematous eruption on the right foot and the right leg, with subsequent id reactions affecting the right thigh, the contralateral lower limb, the trunk and the upper limbs. The lotion was discontinued, and the dermatitis resolved after topical corticosteroid therapy. Patch testing with the aforementioned lotion 10% pet. and oxidized tea tree oil 5% pet. identified tea tree oil as the culprit agent of the dermatitis. This case report confirms that products made of natural ingredients, often perceived to be harmless, can cause allergic reactions.
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spelling doaj.art-fb3790a6458947cda553fc701ec0981b2023-11-23T12:02:29ZengMDPI AGMedicina1010-660X1648-91442022-04-0158556110.3390/medicina58050561Spreading Allergic Contact Dermatitis to Tea Tree Oil in an Over-the-Counter Product Applied on a WartFrancesca Ambrogio0Caterina Foti1Gerardo Cazzato2Edoardo Mortato3Stella Mazzoccoli4Anna Paola De Caro5Nicoletta Cassano6Gino Antonio Vena7Gianfranco Calogiuri8Paolo Romita9Section of Dermatology, Department of Biomedical Science and Human Oncology, University of Bari, 70124 Bari, ItalySection of Dermatology, Department of Biomedical Science and Human Oncology, University of Bari, 70124 Bari, ItalySection of Pathology, Department of Emergency and Organ Transplantation (DETO), University of Bari Aldo Moro, 70124 Bari, ItalySection of Dermatology, Department of Biomedical Science and Human Oncology, University of Bari, 70124 Bari, ItalySection of Dermatology, Department of Biomedical Science and Human Oncology, University of Bari, 70124 Bari, ItalySection of Dermatology, Department of Biomedical Science and Human Oncology, University of Bari, 70124 Bari, ItalyDermatology and Venereology Private Practice, 70100 Bari, ItalyDermatology and Venereology Private Practice, 70100 Bari, ItalyHospital Vito Fazzi, 73100 Lecce, ItalySection of Dermatology, Department of Biomedical Science and Human Oncology, University of Bari, 70124 Bari, ItalyTea tree oil is an essential oil obtained by distillation from the leaves and terminal branchlets of <i>Melaleuca alternifolia</i> and is now present in numerous products for body care and self-medication. We report a case of allergic contact dermatitis to tea tree oil in a young man who was applying a lotion containing tea tree oil on a wart localized on the plantar aspect of the right big toe, which had previously been treated with cryotherapy. He developed a severe eczematous eruption on the right foot and the right leg, with subsequent id reactions affecting the right thigh, the contralateral lower limb, the trunk and the upper limbs. The lotion was discontinued, and the dermatitis resolved after topical corticosteroid therapy. Patch testing with the aforementioned lotion 10% pet. and oxidized tea tree oil 5% pet. identified tea tree oil as the culprit agent of the dermatitis. This case report confirms that products made of natural ingredients, often perceived to be harmless, can cause allergic reactions.https://www.mdpi.com/1648-9144/58/5/561allergic contact dermatitis<i>Melaleuca alternifolia</i>tea tree oilviral wartsplantar wartstopical treatment
spellingShingle Francesca Ambrogio
Caterina Foti
Gerardo Cazzato
Edoardo Mortato
Stella Mazzoccoli
Anna Paola De Caro
Nicoletta Cassano
Gino Antonio Vena
Gianfranco Calogiuri
Paolo Romita
Spreading Allergic Contact Dermatitis to Tea Tree Oil in an Over-the-Counter Product Applied on a Wart
Medicina
allergic contact dermatitis
<i>Melaleuca alternifolia</i>
tea tree oil
viral warts
plantar warts
topical treatment
title Spreading Allergic Contact Dermatitis to Tea Tree Oil in an Over-the-Counter Product Applied on a Wart
title_full Spreading Allergic Contact Dermatitis to Tea Tree Oil in an Over-the-Counter Product Applied on a Wart
title_fullStr Spreading Allergic Contact Dermatitis to Tea Tree Oil in an Over-the-Counter Product Applied on a Wart
title_full_unstemmed Spreading Allergic Contact Dermatitis to Tea Tree Oil in an Over-the-Counter Product Applied on a Wart
title_short Spreading Allergic Contact Dermatitis to Tea Tree Oil in an Over-the-Counter Product Applied on a Wart
title_sort spreading allergic contact dermatitis to tea tree oil in an over the counter product applied on a wart
topic allergic contact dermatitis
<i>Melaleuca alternifolia</i>
tea tree oil
viral warts
plantar warts
topical treatment
url https://www.mdpi.com/1648-9144/58/5/561
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