Talk to Dermatologist on Skin

AOA my problem is that I m having eczema patches of my face that flare up almost after every 6 7 are red flaky along with itching prescribed me advacort for 7 days along with antihistamine about 7 days my skin is like prfct but after a week or so again same thing happens to my suggest me wat should I do ??? except this m using physiogel moisturiser as well but it seems waste during a flare up.... 2nd question I want to ask that as it is mentioned on advantan that use duration for adults is up to 12 weeks I want to ask that how much long duration of using topical steroid e.g advacort doesn't cause harm??