When casting spells or performing rituals, it is wise to pay attention to correspondences such as the sign the Moon is in. For health magic, it is useful to know that each Zodiac sign rules a specific part of the human body. It is generally believed that no harm should be caused to the body part that is ruled by the sign that the Moon is currently in. That means no surgery, piercing, tattooing, etc. However, healing spells performed on those body parts are more effective then usual.

Aries – head, face (except nose), brain, eyes
Taurus – neck, teeth, ears, throat, jaw
Gemini – shoulders, arms, fingers, upper ribs, lungs, thymus gland
Cancer – stomach, diaphragm, lymph system, liver, gall bladder, chest
Leo – heart, aorta, spine, back
Virgo – colon, pancreas, small intestine, spleen, nerves
Libra – kidneys, bladder, inner ear, skin
Scorpio – nose, genitals, rectum, urethra, colon, blood, back
Sagittarius – hips, thighs, liver, veins
Capricorn – teeth, bones, joints, skin
Aquarius – calves, ankles, varicose veins, circulatory system
Pisces – feet, toes, lungs, bodily fluids