Reactions to external agents

Link to DermNet's pages about cutaneous reactions to external agents.

Injury

• Ageing skin
• Amputation stump dermatoses
• Bedsores
• Body piercing
• Chemical burns
• Drug abuse
• Drug-induced nail disease
• Electrical burns
• Erosions and ulcers
• Forensic dermatology
• Human bites
• Insects and mites
• Irritant contact dermatitis
• Lax beetle dermatosis
• Marine wounds and stings
• Non-accidental injury
• Paedarus dermatitis
• Pathergy
• Sensitive skin
• Skin infections in people who inject drugs
• Skin problems due to caterpillars and moths
• Skin problems from stomas
• Sea bather's eruption
• Sunburn
• Wounds

Cold and heat

• Heat and cold
• Chilblains
• Chilblain lupus erythematosus
• Cold urticaria
• Heat urticaria
• Cryopyrin-associated periodic syndromes
• Friction blisters
• Frostbite
• Familial cold autoinflammatory syndrome
• Microgeodic disease
• Muckle-Wells syndrome
• Raynaud phenomenon
• Thermal burns
• Thermal burns from paraffin ointments
• Winter itch

Toxicity

• Cutaneous toxicity from fish ingestion
• Seaweed dermatitis
• Scombroid fish poisoning
• Heavy metal toxicity
• Acrodynia (mercury poisoning)
• Argyria (silver poisoning)
• Arsenic
• Alcohol
• Kava dermopathy
• Blister agent toxicity
• Carbon monoxide poisoning
• Thallium poisoning
• Shiitake mushroom dermatitis

Immune reactions

• Acute urticaria
• Allergic contact cheilitis
• Allergic contact dermatitis
• Anaphylaxis
• Angioedema
• Black henna tattoo reactions
• Contact stomatitis
• Exercise-induced anaphylaxis
• Food allergy
• Plant allergies
• Infections, cancer: Annular erythema
• Viral infections: Erythema multiforme
• Chronic urticaria
• Dermographism
• Pressure urticaria
• Tattoo-associated skin reactions
• Urticaria-like conditions

Sunlight

• Photosensitivity,
• Polymorphous light eruption,
• Juvenile spring eruption,
• Actinic prurigo,
• Solar urticaria,
• Hydroa vacciniforme
• Photocontact dermatitis

Drug reactions

• Acute generalised exanthematous pustulosis
• Adverse cutaneous reactions to drugs
• Anaphylaxis
• Anticonvulsants and the skin
• Baboon syndrome
• Cutaneous adverse reactions to antibiotics
• Drug eruptions
• Drug hypersensitivity syndrome
• Drug-induced pruritus
• Drug-induced lupus erythematosus
• Drug-induced photosensitivity
• Drug-induced skin pigmentation
• Drug-induced urticaria
• EGFR/Kinase inhibitors
• Fixed drug eruption
• Flagellate erythema
• Generalised pustular psoriasis
• Halogenodermas (iodides, bromides)
• Hand-foot syndrome
• Heparin-induced thrombocytopenia
• Heparin necrosis
• Lithium
• Methamphetamine skin effects
• Morbilliform drug eruption
• Pseudoporphyria
• SDRIFE: Symmetrical drug-related intertriginous and flexural exanthema
• Severe cutaneous adverse reaction
• Serum sickness
• Serum sickness-like reaction
• Stevens-Johnson – Toxic epidermal necrolysis
• Sulfa drugs/sulfonamides
• Topical steroid withdrawal syndrome
• Toxicity of chemotherapy drugs
• Urticaria
• Vitamin A toxicity
• Warfarin-induced skin necrosis

Miscellaneous

• Aquagenic wrinkling
• Autoimmune progesterone dermatitis
• Carbon monoxide poisoning
• Contact reactions to toothpaste and other oral hygiene products
• Dactylitis
• Exercise-induced vasculitis
• Peristomal intestinal metaplasia
• Wells syndrome