Suggest Treatment For Senile Warts

I have had senile warts removed from my back by laser. Too limited in coverage and expensive. Can I mix Apple Cider Vinegar and some amount of Salicylic Acid (commercial wart treatment), and use that? What proportions of vinegar to salicylic acid could I use? Is it OK to break the white thick covering on the surface with a needle before applying the drop of mixture? I admit to trying that and it works quicker it seems, with no problems, so far.! Thank you. I am a triathlete and feel very much on display, hence my wish to remove these spots and dots. Val Lambert