Some cures really worked, though. Sometimes wounds that today we would use stitches were held together using beetles that had pincers. The edges of the wound were pinched together by a big, angry beetle. When the pincers were pinching it firmly together, the beetle head would be cut off. Spider webs were used to help wounds clot (blood come together). Doctors are still looking into other "cures" that were used in the Renaissance to see if they can help today's medicine.