A 28-year-old veterinary student presented with nodules on her forehead. Two weeks earlier, she had been butted in the head by a ram while working with a herd. She sustained a small abrasion over the left frontal area of her head. Six days after the injury, she noted the development of local erythema, swelling and pruritus. She had no fever, chills or systemic symptoms. Self treatment with topical polymyxin B sulfate/bacitracin zinc (Polysporin, Pfizer Inc, USA) yielded no improvement in the lesions.