Home > What are the chances of foam sclerotherapy staining my skin? > What are the chances of foam sclerotherapy staining my skin? What are the chances of foam sclerotherapy staining my skin? Home > What are the chances of foam sclerotherapy staining my skin? > What are the chances of foam sclerotherapy staining my skin? Foam sclerotherapy has a 10% risk of causing skin-staining. This staining can last for many months and although it almost always fades completely with time, we cannot guarantee that it will.