The public has been warned to be on high alert for Asian hornets and to report sightings immediately.

And although Asian hornets pose no greater danger to humans than our native wasps and hornets, and their sting usually feels similar to their stings, they can cause severe reactions in some people.

Most people notice a sting immediately and are advised by health professionals to put ice on the sting site and clean the area. Those who are in pain can also take an antihistamine and/or aspirin.

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In rare, more severe cases, those affected may experience hives, reddened skin, paleness, sudden warmth, a lump in the throat and/or difficulty swallowing. This indicates an anaphylactic reaction. If available, an EpiPen should be used immediately and emergency services should be called.

Although extremely rare, a severe anaphylactic reaction can result in death from cardiac arrest or organ failure. This typically occurs when a person with an allergy has suffered multiple stings.

Anyone who suspects they have seen an Asian Hornet is asked to report it using the Asian Hornet Watch iPhone and Android app or this online reporting form. Alternatively, you can email [email protected]. Government officials have asked if a photograph can be included, provided one can be “safely obtained”.

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