Suggest Remedy For Warts On The Faces

i have warts on my faces, not excatly like moles bt black spots which were though present before but were light. few months back i noticed more small light spots like warts on my hands and legs , the spots already present on face are dark now.... and this really look bad. i consulted a doctor they said they cant stop them, the only solution is laser. they suggested to stay away from sun, use sunscreen etc. though my daily routine is like i dont go outside in sun much, i dont know what to do, i dont want to use laser as a treatment. and my spots are getting darker and they are increasing also. my sister also encountered some on my scalp.. which were not there earlier, the only medication i used on scalp was minoxidil soln. for hair problem. though i stopped using it because i thougt may be it is the reason which triggered all this. please tell what to do.