Can you cause damage to penile vein or artery this way?

So I had minor phimosis so my doctor gave me a topical cream to apply on the ring of my penis and to do some stretching excersizes. I couldn't fit my fingers through the foreskin to stretch the skin at first so I used q tips. I placed the q tips in my between my penis and did some stretching excersizes. My... show more So I had minor phimosis so my doctor gave me a topical cream to apply on the ring of my penis and to do some stretching excersizes. I couldn't fit my fingers through the foreskin to stretch the skin at first so I used q tips. I placed the q tips in my between my penis and did some stretching excersizes. My penis can now be retracted thanks to the cream but I've been having symptoms of ED. Could these streching excersizes have caused damage to my penile vein and artery?
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