Hoping it would fix things, Erika applied a bit more of the Salve and started observing changes,
It felt more painful this time, like her bones were shooting out her skin and her insides were becoming mushy. When everything was over she looked at her sister and her sister's lover. They were complete invertebrates, their skin had been turned into milky white exoskeletons, not a piece of soft skin on either of them. Their faces had chanced too, they lacked visible mouths or noses, their only facial features were two giant red eyes, and two fluffy mothlike antenna, The only things that hadn't changed were their body shapes and their hair.
Suddenly the male creature spotted her and Erika was reminded that the two of them were having weird bloody sex. The male opened up his face revealing a strange vertical maw, Erika ran to the bathroom.
In the bathroom she realized that because of how the salve works she was one of these creatures too, she could barley recognize herself. Skin she once thought of as pretty and spotless was now a hard insectoid shell. It felt odd touching it, like her entire body was tooth, and knowing what happens when she tries more salve there didn't seem to be a solution.