Kaifuku Lotion de Maou wo Taosu Koto ni Natta. ~Isekai Byurubyuru Kouryakuki~ is a Manga/Manhwa/Manhua in english language, REINCARNATION series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

One day, high school girl Aira Hagiwara is suddenly reborn in another world as the Great Saint. Aira is excited to be in a fantasy world just like her favorite video game, but the only skill granted to her by the goddess is a strange one: "recovery lotion". Saving the world with lotion(?!) A slimy adventure comedy!