Is it possible to have a yeast infection only on the outside of the vagina? if so can i just use anti fugal cream on the outside only because inside does not have symptoms?

External genital yeast infection always means the infection is inside the vagina as well. There are no pain nerves inside the vagina: absence of internal pain or irritation does not mean infection is absent. Treatment needs to be in the vagina as well as external. Or use fluconazole (Diflucan®) by mouth: a single dose is just as effective as several days of vaginal treatment.