First aid for moth sting is removal of stinging hairs and analgesia.
A number of moth and butterfly larvae have hairs or spines which contain venom. In some species, the adult also has stinging hairs. Unfortunately, this is true of some very common species.
Signs and Symptoms
- Severe pain, maybe persisting for hours
- Oedema
- Erythema
- Itch, lasting over a period of days
- In cases where hairs infest clothing which is then worn, a widespread rash can develop.
Anaphylaxis is a possiblity where the patient has had previous exposure.
Treatment
- Remove the stinging hairs or spines using adhesive tape.
- Oral or topical analgesia as indicated.
- Ice packs can augment pain relief.
- Give sntihistamines as indicated.
In cases of anaphylaxis, immediate transfer to critical care is indicated.
Last updated: July 2005
