Crystal Guidance: Crystal Tips and Prescriptions - Bruises. Top Recommended Crystals: Rose Quartz, Hematite, Amethyst, or Blue Lace Agate. Additional Crystal Recommendations: Rainbow Obsidian or Fluorite. Hold your preferred crystal(s) to the site of pain or near it as needed. You can also put the crystal in the freezer or run it under cold water for a couple of minutes. The cold crystal will also help reduce any swelling. Also see pain relief.