Suggest Treatment For Chronic Vulvar Disease

since 1994 (some 17 years ago) I have suffered chronic vulvar irritation managed with occasional hydrocortisone ointment applied sparingly and washing with non soap products, moisturising until lately with aqueous cream now using more natural products e.g. coconut oil/calendula/vitamin e - creams
around year 2000 I was diagnosed with Hashimoto's thyroiditis - is this vulvar problem incurable?