Hydrotherapy is a simple and effective way of improving blood circulation. Alternating application of hot and cold water affect the blood vessels, improving circulation. Another great home remedy for blood circulation you can easily follow. First, immerse yourself in warm water and then cold water. Hot water will stimulate dilation of the vessels near the skin surface, while cold water will close down the blood vessels. Keep alternating between the two every 30 seconds. Hydrotherapy should be performed 4 to 5 times a day for optimum results. Do not begin with very hot or cold water. The temperature should be gradually increased over a period of few days.