I have 3 small warts on my penis and they were diagnosed as bowenoid papulosis. My GP treated them with liquid nitrogen. After 2 days, I found the skin around the warts are much dark than other areas, is this normal? The doctor ask me go for the second treatment in two weeks. Anyone here has experience of liquid nitrogen treatment? will the skin become dark for ever?
After liquid nitrogen treatment, the skin will become swollen and red; later on, it may blister. A scab will form and it will fall off by itself in 2-4 weeks. The skin growth will come off with the scab, leaving healthy new skin. The darkened skin may be due to hyperpigmentation. Usually, liquid nitrogen treatment often leaves a permanent, white scar which is usually flat.
You need to return to your doctor for the follow-up appointment for proper evaluation. Take care and keep us posted.
Usually hyperigmentation are inflammatory reactions of the skin. It will usually resolve after a few weeks. However, since it is difficult to make a clinical diagnosis over the internet wherein complete physical examination can not be done, it is still best to have your doctor evaluate this.
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