undergarments that have been washed in irritating chemicals such as detergents and fabric softeners and inadequately rinsed out.
perfumed soaps and panty liners.
detergents used to clean the bath.
vaginal discharge with infection, particularly thrush (
vaginal infections) and trichomonas (
vaginal infections).
diabetes - the vulval area appears red either due to sugar from the urine irritating the skin or from candida which enjoys the sugary environment. Sugar in the urine or a blood sugar test will confirm the diagnosis.
warts (
Q31.4)
malignant change.
psychosomatic (
2).