Research published in Nature magazine’s Journal of Investigative Dermatology suggests that aspirin, ibuprofen and some other NSAIDs can prevent squamous cell carcinoma. It is believed this may be due to the NSAIDs inhibiting an enzyme, COX-2, which is released in response to high exposure to ultraviolet light. This comes on the heels of population studies which suggested a reduction of melanoma risk among some groups of NSAID users, but the results are mixed. The Oregonian summarizes the results of the recent study, here: