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Associations

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

These include:

  • drugs:
    • barbiturates
    • sulphonamides
    • aspirin
  • infections:
    • herpes simplex - virus 1 and 2 – most commonly identified aetiology
    • typhoid
    • mycoplasma pneumoniae
    • tuberculosis
    • orf (1)
  • vitamin deficiencies:
    • niacin
    • A
    • C
  • inflammatory disorders:
    • collagen vascular diseases
    • inflammatory bowel disease
    • local allergic reactions
  • pregnancy
  • post-radiation therapy

 

Reference:

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