Leech therapy - treatment with leeches . During this therapy leeches are placed on the patient's skin to treat various diseases and removing toxins from the body. Leech bite through the skin to a depth of 1.5 - 2 mm, and injected into the wound saliva containing active substances that have a positive effect on the healing process : anticoagulant , anti-inflammatory, antibacterial, soothing tissue effect. During girudoterapii stimulated and improves lymph flow, removes deposits in the lymphatic vessels , decreases swelling and water retention . In addition, treatment with leeches has a relaxing and antispasmodic action . Leech therapy may be used to treat hypertension, various inflammatory processes , joint pain , boils , acute gout , sinusitis , etc. However, the main indications for this therapy are venous stasis , varicose veins and thrombophlebitis . Leech therapy should be carried out only by qualified experts with the necessary hygiene standards .