Bethy, well done, well written story.
An original, yet poignant situation for the ultimate haircut for Lois. I too could see Lois taking shears in hand just to prove that she had some control over how she has to deal with the disease.
I didn't understand the bit with the sneezing (and I supposed Lois tweezed her brows rather then just easily shaving them off because she was just stubborn) but it was funny.
Nicely met, the darkfic conditions too, but you'd be able to easily alleviate that part, (and the concerns of the skittish gentle readers) by just adding a short epilogue set some resonable time after the incident that mentions how, even though Lois beat the cancer, she liked the bald look and kept it
.
Tank (who just might have a few more challenge vignettes in him... imagine that?)