Thrombosed veins... bruising... those are EXTREME injuries! i have been pumping for YEARS and have injured the skin of my penis so many times, I cannot tell how many... and I have NEVER had a thrombosed vein or actual bruising!
I thought in your original post that you had two problems: 1). Your skin of the penis is now wrinkled. and 2). The skin is now loose.
I didn't respond to this post because having wrinkled and loose penile skin is called FORESKIN RESTORATION dude... you have loose and wrinkled skin because your skin was stretched and is now LARGER in surface area which is what you WANT! How are you gonna get a bigger penis without increasing the surface area of your penile skin? You aren't that is the answer.
Is there more damage to your penis then you are telling us?
Because having loose and wrinkled skin is a step towards having a much larger penis. When you get erect, your cock will fill out all of the wrinkles and your cock will use the new skin to BALLOON outward.
You NEED to pump with a gauge... if you don't you are asking for trouble. Never pump above 5 or 6 inches of Mercury... stay around between 3 and 5... spread some Vaseline or other thick lube around the base of the tube where it meets your body to keep a strong seal... you will need a strong seal to pump successfully at low pressures.
You NEED to keep the tube warm by using a heating pad and a blow dryer. Wrap the tube in the heating pad before you pump and then take it out to cool off for a few minutes and use the blow dryer on the outside of the tube to gently keep the cylinder warm so your cock can expand more easily and your skin can stretch.
You need to use PLENTY of lube in the tube and use some kind of ointment or lotion on your penis afterwards. A pumped cock needs plenty of moisture because the stretched skin left out in the elements and rubbing against your clothing will cause it to dry out very quickly, get used to moisturizing your cock.
A thrombosed vein is actually a vein that has expanded so much that it ruptures. A common form of thrombosis occurs in or outside the rectum... yes, they are hemmoroids, and you NEVER want to get one... you will be cryin' for your Mama! lol!!!!! Thrombosed veins cause HUGE abscesses and if you had a thrombosed vein in your penis which I am 99% sure that you don't... your crotch would look like a fucking alien creature. The veins of the penis are deep within the shaft and aren't touched by pressure levels of under ten to fifteen inches of Mercury... in fact, the pressure required to cause thrombosis would be soooo immediately painful that you couldn't stand more than a few seconds of it. You don't hang weights off of your cockhead, so I don't know why you would worry about bruising either.
You DO need to worry about the skin of your penis... and following the instructions I have listed above should keep it safe.