 [ Symptoms ] i have sores breaking out all over my body what could this be  i was living on connecticut coast during irene and sandy first sore was on my back starts out as itchy patch which turns into a sore and when not picked it becomes a raised bump they seem to be spreading around my legs and arms and now are beginning on my back what could this be  [ Disease ] several medications can decrease psa values but i am not aware of any that can raise psa medications that can decrease psa and thus possibly cause a false negative test include • finasteride and dutasteride these treat enlarged prostate finasteride is also used for male pattern baldness • anti inflammatory medicines also called nsaids this includes naproxen and ibuprofen • acetaminophen or tylenol • statins to treat high cholesterol • water pills or diuretics things that can increase psa values include • bph or enlarged prostate • prostate cancer • prostatitis infection of the prostate • recent sexual activity • recent urological procedures like cystoscopy • long distance bike riding if your psa value is elevated you should see a urologist and find out what is causing it find out more information about psa testing in the prostate cancer health center