Thanks for the question and your concern. The main cause for erectile problem would be due to much emotional disturbances. It is true that drugs taken for ED can increase the blood pressure level. There are many other options available which are mostly complicated and bit costly. One of them is through injection therapy: as a drug would be injected directly through your husband penis to maintain erection. The next option would be a small suppository would be inserted into the urethra to improve erectile dysfunction. The last option would be to implant penile. You can consult your doctor more politely to refer your husband to a urologist as this problem has causes disorder in your marriage life. There are experts in this area who can help your husband from this problem.