This is Dr. David
you need to see a urology doctor
they often will have an erectile dysfunction clinic where they can give you prescdription for penis pump and you can get one at a medical supply store. you also have to use a soft silicone or rubber ring band at the base of the penis with the penile pump to hold blood in the penis
the urologist can also talk to your about TriMix or Quad mix injections into the penis which can result in erections when medications like viagra or cialis or lavetra do not work
testosterone injections may work better for you than testosterone gels
keeping your diabetes in control and keeping your hemoglobin a1c low is the best way to protect your nerves from diabetes damage.
let me know if you have other questions.
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you can always reach me with "a question for Dr. David" in the medicine or oncology categories if you have any other questions
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