Apple Cider Vinegar- Apply undiluted apple cider vinegar on the skin over the varicose veins and gently massage the area. Do it every day before going to bed and again in the morning. Follow this remedy for a few months to reduce the size of varicose veins. Add two teaspoons of apple cider vinegar to a glass of water and stir well. Drink the mixture twice a day for at least one month to see positive results.