@woobus yes, I have been using this for 3 weeks. It is working very well. I have about 30 SKs on my back and a couple had become so large and disfiguring I decided I must do something. In the first couple of weeks they swelled up (no pain or irritation, just as if expanding like a dry sponge in water) now they are shrinking and peeling. I have some itching and pinkness on surrounding skin but nothing I can't tolerate. The SKs are starting to lift on the edges from the normal skin and I have read how Tazarotene does this and it is expected. Tazarotene basically destablises the abnormal cells in an SK and they self destruct. I am expecting them to gradually drop like a scab and so am moisturising with an occlusive a couple of hours after the evening application to try to avoid the scabs coming off before the normal skin underneath the SKs is healed. Some of mine are very thick and a few inches wide so any scarring from the scabs pulling off too soon might be quite big.