Diclofenac Gel 20gDiclo Gel is used to relieve pain and reduce swelling in your joints and muscles. It can be used to treat various injuries such as sprains, strains and bruises. It can also be used for tendonitis (such as tennis elbow) and osteoarthritis. Dose Diclo Gel may be used 2 to 4 times a day on the affected area depending on how severe your condition is. It should be applied slowly and evenly to the skin until it is rubbed in. You should not use it too often