Yes I'm seeing a lot of external type treatments when Seborrheic Keratosis is something being caused by INTERNAL gut problems. I've suffered KP from a kid till still now (53) I did a whole body cleanse and they finally started going away and my skin felt so absolutely smooth. Then they came back... Well I can't stay on a forever cleanse. So I'm seeing a link between eating certain foods. I did eliminate as much wheat as possible during that cleanse and shortly after. I have introduced in back in my diet (mistake) and other bad crap to eat. Thus KP has now returned with a vengeance!!! I also was taking a good probiotic and food enzyme and fail to remember now. All of this plays a role and if I can break down supplements, there's a good connection between vitamin A and C. At least for my body. I'm still investigating what I did wrong but it's definitely in the gut and foods you're eating!
Cause of Seborrheic Keratosis
My dermatologist said that seborrheic keratosis is caused by sun damage suffered in earlier years. You don't have to burn to be subject to it, especially with multiple years of exposure. She said as earth's ozone layer becomes thinner (because of pollution), that the rate of pre- and non-cancerous growths has increased dramatically, and that it's best not to avoid the sun and outdoor activities all together, but to always wear hats, sunglasses, and full body covering when outside, even on overcast days. Ten minutes a day of sun exposure is all we need to meet Vitamin D requirements.