What are the risk factors for hives?

Written by: Bronwen Watson

Reviewed by: Dr Tamlyn Maree

The risk of hives, either acute or chronic, increases due to any of the following:

Allergies (whether pre-existing or newly developed)
A personal history of hives
A family history of hives (especially in the case of hereditary angioedema, although rare)
A known disorder that is associated with hives (infections such as urinary tract infection, strep throat, hepatitis, rheumatoid arthritis, or type 1 diabetes)
Frequent viral infections
Medications (allergic and non-allergic mechanisms, including codeine ⁽¹⁰⁾, aspirin, morphine, and NSAIDs)
Existing skin sensitivities or dermatitis (inflammation of the skin)
Existing sensitivities to disinfectants, dyes, chemicals, or perfume fragrances
Emotional triggers (association with stress and anxiety) ⁽¹¹⁾

References:

^{10. Medline Plus. 30 July 2018. Codeine: https://medlineplus.gov/druginfo/meds/a682065.html [Accessed 29.08.2018]}

^{11. Pubmed Health. Urticaria (Hives): https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0022705/ [Accessed 29.08.2018]}