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DermNet NZ 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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Phantom vibration syndrome
Phantom vibration syndrome (PVS) refers to the false perception that one’s mobile phone or other technological device is vibrating when...
Cryotherapy
Cryotherapy is a minimally-invasive treatment that freezes skin surface lesions using extremely cold liquid or instruments (eg, liquid nitrogen).
Antiperspirants
An antiperspirant is a chemical agent that reduces perspiration or sweating.
Nodular prurigo
Nodular prurigo (NP) or prurigo nodularis is a chronic skin condition characterised by very itchy firm lumps.
Shoe contact dermatitis
Defined by dermatitis on the feet caused by any footwear, shoe contact dermatitis may be an allergic or irritant reaction.
Angioedema
Angioedema is red painful swelling in the subcutaneous tissue, triggered by an allergic reaction or medication.
Pitted keratolysis
Pitted keratolysis, also known as ringed keratolysis, is a superficial bacterial skin infection characterised by crater-like pits and malodour.
Cholinergic urticaria
Cholinergic urticaria (heat bumps) is characterised by short-lived hives that occur due to sweating.
Periorificial dermatitis
Periorificial dermatitis is a common facial skin problem characterised by groups of itchy or tender small red papules.
Skin reactions to COVID-19 vaccines
There are a spectrum of skin reactions following COVID-19 vaccination including local site reactions, urticaria, a delayed large local reaction...
Pseudoxanthoma elasticum (PXE)
Pseudoxanthoma elasticum refers to rare inherited conditions where abnormal calcification and mineralization of elastic fibres occurs.
Scabies
Scabies is a very itchy rash caused by a parasitic mite that burrows in the skin surface.
Alopecia areata
Alopecia areata is an autoimmune disorder leading to hair loss.
Cutaneous adverse effects of targeted anticancer therapies
All modalities of anticancer therapy have the risk of causing substantial cutaneous toxicities that can seriously affect a patient’s quality...
Becker naevus
A Becker naevus (nevus) is a late-onset birthmark characterised by a large brown patch and occurs mostly in males.
World Health Days
Diabetes Month
November is World Diabetes Month.
Diabetic foot ulcer
A diabetic foot ulcer is a skin sore with full thickness skin loss often preceded by a haemorrhagic subepidermal blister.
Necrobiosis lipoidica
Necrobiosis lipoidica is a rare granulomatous skin disorder typically described on the shin of diabetics.
National Oral Health Day
The 8th of November is National Oral Health Day in New Zealand.
Transient lingual papillitis
Transient lingual papillitis is a common painful inflammatory condition affecting one or several fungiform papillae on the tongue.
World Jellyfish Day
The 3rd of November is World Jellyfish Day.
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, 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 mild and short-lasting viral infection most often affecting young...
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.
Guidelines for authors
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