It is a childhood illness caused by a virus. It causes fever, headache, muscle aches and exhaustion. Swelling of the salivary glands, specially below the ear and jaw, is common. In rare causes it can cause deafness, infection of the brain and spinal cord and painful swelling of the testicles or ovaries.lt is self limiting, requiring only symptomatic treatment with paracetamol. Warm gargles and eating soft bland food helps to ease the throat pain. Mumps can be prevented by MMR vaccine which is given to children around the age of 15 months.