Add minoxidil to your regimen. Use any topical corticosteroid 2-3 times a week, give finasteride 1 more year, if you don't notice any difference drop finasteride.
Use higher percentage of minoxidil (10% lotion, may cause some side effects but don't go for 15% or something)
Use topical corticosteroid 2-3 times a week, Remember intermittent use will not have any systematic side effects.
If it still doesn't work, come back then!
Remember that sometimes medications only slow down the progression! so watch out for that.