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DermNet is the world’s free resource and authority on all things skin. 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.
Supported by and contributed to by New Zealand Dermatologists on behalf of the New Zealand Dermatological Society Incorporated.
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Skin reactions to face masks
Face masks and respirators are examples of personal protective equipment (PPE) worn over the mouth and nose to protect the...
Dermographism
Dermographism is an exaggerated weal and flare response that occurs within minutes of the skin being stroked or scratched.
Benign lymphoplasmacytic plaque
Benign lymphoplasmacytic plaque is a pseudolymphoma in children characterised by one or more chronic skin lesions, either solitary or in...
Urticaria - an overview
Urticaria is characterised by very itchy weals (hives), with or without surrounding erythematous flares.
Aphthous ulcer
An aphthous ulcer is the most common ulcerative condition of the oral mucosa, and presents as a painful punched-out sore...
Atopic dermatitis
Atopic dermatitis, also called atopic eczema, the most common inflammatory skin disease worldwide, presents as generalised skin dryness and ‘the...
Pustular psoriasis of pregnancy
Pustular psoriasis of pregnancy, also known as impetigo herpetiformis, is a rare variant of generalised pustular psoriasis that occurs in...
Fixed drug eruption
Fixed drug eruption is a distinctive cutaneous allergic reaction that characteristically recurs at the same site(s) on re-exposure to the...
Brachioradial pruritus
Brachioradial pruritus is a localised form of neuropathic cutaneous dysaesthesia on one or both upper limbs.
Median canaliform nail dystrophy
Median canaliform nail dystrophy is a clinically characteristic change in the nail plate presenting as a midline longitudinal furrow or...
World Health Days 2021
World Scleroderma Month
June 2021 is World Scleroderma Month.
Systemic sclerosis
Systemic sclerosis (SSc) is an autoimmune inflammatory condition.
World Smokefree Day
31 May 2021 is World Smokefree Day.
Nicotine stomatitis
Nicotine stomatitis, also often called smoker's palate, is a reaction seen on the roof of the mouth caused by extreme...
World Bee Day
20 May 2021 is World Bee Day.
Bee and wasp stings
Bees and wasps are venomous stinging insects.
Food Allergy Awareness Week
May 12 to May 18 is Food Allergy Awareness Week.
Pollen-food allergy syndrome
Pollen-food allergy syndrome, previously known as oral allergy syndrome, presents with symptoms after eating specific raw foods that cross-react with...
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.
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 acute superficial bacterial skin infection (pyoderma).
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 (HFM) is a common mild and short-lasting viral infection most often affecting young children.
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 epidermal papules called mollusca.
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 very itchy rash caused by a parasitic mite that burrows in the skin surface.
Guidelines for authors
Are you interested in writing for us? DermNet New Zealand is always looking for potential authors to write on new topics or to update existing ones. Potential authors interested in writing a new page are generally asked to write a topic page about a disease or condition, or a treatment, product or procedure.
