I personally wouldn't put food products on my genitals because of the potential to alter the vaginal microbiome which could lead to yeast infections.
My preference in descending order would be
a) sufficient systemic levels of estrogen and androgens to avoid GSM
b) topical estrogen products used liberally every day as needed to avoid GSM
c) non hormonal topical moisturisers specifically designed for intimate use, with the least number of ingredients possible.
However of all the things people do put down there, and the ones presenting to urgent care are almost certainly the tip of the iceberg, coconut oil is probably one of the most benign agents and might just give you a bit of relief.