Mumps

 The incubation period is 16-21 days, after which children become febrile, feel unwell and lethargic. At this stage the child's face may swell up, due to enlargement of the parotid salivary glands over the angle of the jaw, just below the ears. The child may complain of earache and difficulty in swallowing, and the swollen glands are often tender and painful. There is no specific treatment, and the swelling subsides in a few days. The MMR vaccine has reduced the incidence of mumps infection. Meningitis is a common complication, in which the child has headache, a stiff neck and intolerance of light. Mumps