Hi Jutee, 5 days isn't long with the Ovestin, keep going! It will take longer than that to help rebuild the tissues. Maybe do as CLKD says and use Vagifem nightly for a while. Also you can use a decent moisturiser such as one of the Yes products, or maybe Sylk. (Not KY Jelly which is ultimately drying. You need something pH matched to the area.) Why do you think you need MultiGyn?
Good resources for dealing with VA are Jane Lewis's book 'Me and my Menopausal Vagina' (Amazon), her Vaginal Atrophy Facebook support group (private), and her Instagram page where there are many useful videos and interviews with experts. Jane Lewis is Maryjane on here, but doesn't post often nowadays.
JP x