### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi, Pretty sure had a couple of instances of lymphocele but the last time came with a loss of feeling in my glans. The raised tube went down ok but now, 9 months later, I have developed over time small white patches on the back of the glans. There is 4 now. I feel like it is numbing the feeling in my penis. This all began in one night and suddenly, for the first time in my life, I have trouble getting and maintaining erections. Urologist had never heard of lymphocele and threw some viagra at me which helped but now I need such vigorous stimulation to maintain erections even viagra is failing. And its expensive. Sometime the head of my penis tingles and stings. I do not get spontaineous erections anymore which I have had frequently as long as I can remember. I am 43 and went from rock hard anytime to struggling overnight and it started with a raised white tube popping out under the skin just behind the head. Any ideas what the white patches and loss of feeling could be? Only 1 partner last 18 years and can have frequent vigorous sex. Seems to be getting worse with time.

### output:

Your story prompts me to do something for you. Sildenafin does have bad effects if used indiscriminately which you have observed now. Numbness and erectile inability of penis can be ad Chat Doctor. The whole idea is to strengthen corpora caverns and penile blood vessels. If these fill properly, the erect penis will be as stout as of a young person. Then comes the role of sexual act having broadly four stages in an intercourse cycle viz. Foreplay, Intro mission, Orgasm and Resolution. The technical perfection is your own and your partners experience. To sustain the act for long, some herbal aphrodisiacs, known to nourish seven elements including Semen (as per Ayurveda principles), play an important role. White paths can be ad