Boil Ease Pain Relieving Ointment is designed with a clinically-proven formula to provide fast-acting relief. This powerful ointment unites pain reliever and natural ingredients, including camphor, menthol and eucalyptus oil to provide fast-acting relief from pain and discomfort caused by boils. Formulated with 20 percent benzocaine, the maximum strength ointment deeply penetrates within the boil to dramatically reduce pain and swelling.