There are so many reasons why half of the male population suffers from ED, that it is treated more like a chronic condition which is to be tolerated and medicated, not cured.  Cialis, Viagra and Levitra are effective in lessening the problem; however, they are not a cure.  Psychological problems like depression, or low self-esteem, as well as nerve injuries, kidney disease, vascular disease, diabetes, alcoholism, m. s ., and many other health problems, play a huge part in this problem.  Medications for these problems often cause ED.  You may read on the internet that some herbal supplements  which come in pill form and dissolve under the tongue, can help cure ED.  If this was a fact, you would have heard about it from your physician.  Don’t be fooled into buying herbal solutions.  With so many suffering from ED, they must be working on a cure, right now!!