Lepidopterism is a term that refers to a spectrum of medical conditions in humans that usually involve the skin and result from wormlike contact with an adult or larval form of specific butterflies and moths. Lepidopterism is isolated but certain people may be more prone to exposure to moths. Caterpillar's sting is not an everyday diagnosis; however, the physician should be alert and make awareness regarding caterpillar envenomation. Herein, we present the case of a 31-year-old man who presented to the hospital with a history of a caterpillar's sting associated with unilateral rashes and prickly sensation on his left thigh and lower extremity. On examination, his vitals were stable and he does not develop systemic manifestations or anaphylaxis. In view of his present compliance, he was successfully managed with antihistamines and steroids. This case is being presented not only as the event is rare but also to create awareness and it will help the clinicians to manage the case appropriately.