Saddleback Caterpillar - Achaea stimuli

I got a little too close to this Saddleback while trying to take pictures of a Chestnut tree.

The Saddleback has hollow quills connected to glands beneath its skin. The pain and swelling from a Saddleback sting can sometimes surpass that of a bee sting. The irritation can last for a day or two although not common can be accompanied by nausea during the first few hours.

Immediate application of adhesive tape can be helpful in removing the broken hairs or spines left in your skin. Plus washing the site thoroughly with soap and water may help remove some of the irritating venom or poison.Taking an antihistamine may also help relieve the burning and itching.Some people may have to seek medical attention if they show signs of an allergic reaction.