Hello Partha,
Regarding the problem of
Erectile dysfunction, it is due to decreased blood supply to the penis.
Though medications like Cialis & Viagra increase blood flow to penis & maintains erection, it can be improved by having a diet rich in fruits, vegetables, nuts & honey.
Regarding the problem of
premature ejaculation, it's mostly related to anxiety.
So...don't worry about all this & stay relaxed
Avoid stress...practice meditation..this helps in improving concentration & builds up the confidence level.
Avoid smoking & alcohol.
You can also do oil massage of the penis...it increases blood flow & maintains the erection.
Despite these measures, if you experience difficulty, it will be better to
consult a Urologist & rule out other causes like
high blood pressure, blood sugar and other local causes that impair blood flow to your genital organ.
One more thing...avoid consuming any
over the counter medication which claim to increase the size of penis or improve performance...it may be harmful.
Wishing you a Healthy Life.
Take care.