Could the heat and sun be causing your hives?

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Hives (also known as urticaria) affects about 20 percent of people at some time during their lives[1]. For some people, hives is triggered by allergic reactions to certain foods and environmental substances. But summer time can be a particularly hard time for chronic hive sufferers, as heat and sun can also be major triggers.


Spot the difference …

It’s important to learn the difference between hives caused by heat/sun and hives caused by allergies so that you can reduce your risk.


Heat hives 

Also known as cholinergic urticaria, heat hives can affect up to 15 percent of chronic hive sufferers[2]. This hives reaction involves being very sensitive to heat or sweat, and symptoms normally appear as boy temperature rises.


Symptoms of heat hives include:

  • Areas of swelling and redness
  • Itching/burning sensation on the skin.

Look out for symptoms that appear during exercise, in hot weather or after showering or bathing in hot water. Or for symptoms that reduce as the body’s temperature lowers.


Sun hives

Also known as solar urticaria, sun hives are a rare form of hives that cause the skin to swell when exposed to natural sunlight (or any source that emits UV light).

Symptoms usually develop very quickly (within 30 minutes) after exposure and can last anywhere from an hour to several days. Be on the lookout for:

  • Stinging, itchy rash
  • Red, swollen marks on the skin
  • Lightheadedness, headache, nausea or vomiting (usually present if large areas of the body are affected).


Natural hive treatment

Anti-histamines are commonly used to treat the symptoms of hives as they block the release of histamine (the chemical responsible for your allergy symptoms). But, over time, some people can build up a tolerance and they may lose their effectiveness.

At Health & Wellness Australia & Auckland (HWA), we use a technique called muscle testing or kinesiology to help identify your sensitivities. Following testing, you can work with your practitioner to address your intolerances using a natural allergy treatment called Positive Association Technique (PAT).

PAT is a non-invasive holistic therapy, which:

  • draws on acupressure and kinesiology techniques
  • aims to re-train your body
  • may reduce your reactions to environmental allergens that may be causing or exacerbating your sensitivities.

Some cases can be complex, so our naturopaths may also recommend supplements and herbs, and provide lifestyle advice to help you achieve the best long-term results.


Want to know if PAT is right for you? Get in touch!

Send our practitioners a question using our Ask a practitioner service, and you’ll get a call-back or reply straight to your email inbox.

You can also request an appointment with one of our experienced PAT practitioners in one our clinic locations – North Sydney, Melbourne, Brisbane, Perth or Auckland – by:

  • using our Request an appointment online service
  • calling our head office on 1300 853 023 (Aust) / 09 479 5997 (NZ), Monday to Saturday, 9am-5pm (EST).


[1] American College of Allergy, Asthma and Immunology. Hives (Urticaria).

[2] Hives. Heat Hives.


This blog is intended as general information only. PAT cannot cure allergies – it is intended to decrease reactions and help manage symptoms. It is not intended to raise unrealistic expectations. If symptoms persist, consult your GP.

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