Mustard plasters have a number of beneficial properties. Mustard powder locally irritates the area where it is applied, producing a positive effect. This effect can reduce inflammation, relieve pain, relieve coughing, and reduce discomfort associated with sprains. IndicationsAcute respiratory infections, bronchitis, pneumonia; myalgia, neuralgia, lumbosciatica, arthralgia, sprains, osteochondrosis; cardialgia; soft tissue contusions. ContraindicationsHypersensitivity, skin damage, pyoderma, atopic dermatitis, diffuse neurodermatitis, eczema, psoriasis; diseases associated with a febrile temperature.