i have been on advair for 10 years, now my insuance olny covers delera, for my asthma, that i have had all my life. i am 58,female. i dont like new meds, its scary to me. would u recomend delera or simbacort in place of advair?ive been wthout my advair for 5days, i can tell. i need a good prevenitive...