As mentioned above, I used a mixture of Lugol’s iodine with DMSO (1:2) several years ago which successfully reversed the discoloration on my glans due to pumping. After about four days of twice daily application, a thin layer of skin pealed off which lighted the discoloration significantly. About a weak later, it pealed again and all the discoloration disappeared. I continue to apply it and the discoloration has not returned.
However, about two months ago, I had some discoloration around the area of the frenulum resulting from a VacExtender and this discoloration has not been reversed with the iodine/DMSO. My mixture is now over a year old so this may have affected it’s effectiveness. Also, the VacExtender may have caused a deeper discoloration than the discoloration caused by the pump. The frenulum discoloration has now been mostly reversed after not using the VacExtender for two months. I can not say if the improvement is a result the mixture or natural healing over time.
I also started applying it to another growth on my hand about three months ago and the growth has been reduced in size so there is still some active ingredients in my mixture.