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DermNet™

The world’s leading free dermatology resource. We help thousands of people make informed, evidence-based decisions on how to care for skin conditions, by providing reliable information at the click of a button.

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PVL Staphylococcus aureus

Panton-Valentine leukocidin Staphylococcus aureus (PVL-SA) is highly transmissible, lyses human neutrophils, and may cause recurrent skin and soft tissue infections...

Granular cell tumour

Granular cell tumours are rare, generally benign, soft tissue neoplasms believed to originate from Schwann cells.

Steroid impregnated tape

Steroid impregnated tapes are self-adhesive plastic tapes that have a topical corticosteroid, often fludroxycortide, impregnated into the adhesive.

3D bioprinting

Three-dimensional bioprinting or 3D bioprinting is an emerging technology that uses 3D printing techniques to deposit biological material to create...

Contact reactions to lanolin

Lanolin, the 2023 ACDS Allergen of the Year, is a natural product obtained from the fleece of sheep and is...

What is a dermatologist?

A dermatologist is a medical doctor who has specialised in medicine and then further specialised in diagnosing, managing, and treating...

What is dermatology?

Dermatology is the medical discipline that is concerned with the diagnosis and treatment of diseases of the skin, hair, and...

Bacterial skin infections

Skin infections can be caused by bacteria (often Staphylococcal or Streptococcal) either invading normal skin, or affecting a compromised skin...

Contact allergy to lauryl glucoside

Lauryl glucoside is primarily used as a surfactant in common cosmetic, skincare, and household products.

Paradoxical psoriasis

Paradoxical psoriasis is a drug side effect that results in the formation of red, scaly, psoriasiform plaques on the skin...

Ruxolitinib

Ruxolitinib is a selective inhibitor of the Janus-activated tyrosine kinases JAK1 and JAK2, available in oral and topical formulations.

Idiopathic facial aseptic granuloma

Idiopathic facial aseptic granuloma (IFAG) is a rare, painless, self-limiting, solitary nodule which affects children.

Dermatitis herpetiformis

Dermatitis herpetiformis (DH) is an inflammatory immunobullous disease of the skin and a cutaneous manifestation of coeliac (celiac) disease, a...

UVB Phototherapy

Ultraviolet B (UVB) phototherapy delivers shortwave ultraviolet radiation to treat skin conditions such as psoriasis.

Childhood infections

Meningococcal disease

Meningococcal disease is an illness caused by the bacteria Neisseria meningitidis.

Measles

Measles is a highly contagious viral infection causing fever and a rash. Early symptoms are like the common cold, with...

Chickenpox

Chickenpox is a highly contagious viral infection that causes an acute fever and blistered rash, mainly in children.

Fifth disease

Erythema infectiosum is a common childhood infection causing a slapped cheek appearance and a rash.

Herald patch: pityriasis rosea
Pityriasis rosea

Pityriasis rosea is a viral rash which lasts about 6–12 weeks. It is characterised by a herald patch followed by...

Impetigo

Impetigo is a common, superficial, highly contagious bacterial skin infection characterised by pustules and honey-coloured crusted erosions.

Boil

A boil (also called a furuncle) is a deep form of bacterial folliculitis (infection of a hair follicle).

Hand foot and mouth disease

Hand, foot, and mouth disease (HFMD or HFM) is a common, self-limiting, viral infection that causes blisters on the hands,...

Papular acrodermatitis

Papular acrodermatitis of childhood is a characteristic response of the skin to viral infection in which there is a papular...

Molluscum contagiosum

Molluscum contagiosum is a common viral skin infection of childhood that causes localised clusters of umbilicated epidermal papules.

VIral warts

A viral wart is a very common benign lesion caused by infection with human papillomavirus (HPV).

Head lice

Head lice are small, wingless insects that infest the human scalp.

Scabies

Scabies is a transmissible skin disease caused by the ectoparasitic mite Sarcoptes scabiei var.

Slider: Childhood infections

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Supported by and contributed to by New Zealand Dermatologists on behalf of the New Zealand Dermatological Society Incorporated.

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