It may result in a dry cough or some shortness of breath. TB in New Zealand is currently uncommon. Pregnancy or the oral contraceptive pill EN may occur after the first 2 or 3 cycles on the pill. EN may occur in pregnancy, clear after delivery, then recur in subsequent pregnancies. There are many other causes of EN but these are uncommon in New Zealand.
Joint aches occur in over half of cases regardless of cause.
The knee jonts are almost always affected, the other large joints less commonly. Joint symptoms may persist for months afterwards but always resolve completely. The EN lesions are ushered in by fever, general aching and feeling unwell. Red lumps appear on the shins or about the knees and ankle. They vary in size between a cherry and a grapefruit and in number from 2 to 50 or more.