A recent study published in the Journal of the American Academy of Dermatology has shown that taking hydrochlorothiazide (HCTZ) is associated with an increased risk of basal cell carcinoma and an even higher risk of squamous cell carcinoma. The risk was dose dependent (the higher the cumulative dose, the higher the risk).
An increased risk was not seen with other anti-hypertensive agents or diuretics.
A recent study has shown a positive association of increased alcohol consumption with the risk of non-melanoma skin cancer. The study was small, so larger studies are needed to confirm these preliminary results.
Here is yet another possible reason to limit or eliminate alcohol consumption. Red wine has some other health benefits that, according to some, might outweigh the negative effects when taken in moderation–no more than one glass per day, but even that is somewhat controversial.