Pustular Psoriasis Causes

Eruptive pustules have been associated with the following causes: 

• Taking systemic steroids (steroid medications given by mouth or by injection) and then discontinuing them
  
  
• Various drugs, including the following:
  
  
  • Salicylates, compounds made from salicylic acid, often used to treat pain and fever
    
    
  • Iodine, a topical antiseptic
    
    
  • Lithium or trazodone, antidepressants
    
    
  • Phenylbutazone or oxyphenbutazone, nonsteroidal anti-inflammatory drugs (NSAIDs)
    
    
  • Penicillin, an antibiotic
    
    
  • Hydroxychloroquine, an antimalarial drug
    
    
  • Calcipotriol, a vitamin-D derivative
    
    
  • Interferon alfa and recombinant interferon-beta injections, chemotherapeutic agents
  
  
• Strong, irritating topical solutions (creams or ointments applied to the skin), including tar, anthralin, steroids under occlusion, and zinc pyrithione in shampoo
  
  
• Infections
  
  
• Pregnancy
  
  
• Sunlight or phototherapy
  
  
• Cholestatic jaundice (a yellowish staining of the skin and eyes, caused by bile)
  
  
• Hypocalcemia (abnormally low levels of calcium in the blood)