KRAS and Erythema: Rash (43% vs. 26%), dry skin (45% vs. 36%), conjunctivitis (27% vs. 14%), skin fissures (23% vs. 17%), pruritus (24% vs. 14%), skin toxicity (16% vs. 7%), and erythema (12% vs. 7%) were more common in the WT KRAS group.