Hae or hereditary angioedema
is a genetic swelling disease due to deficiency or dysfuntion in a protein
called c1 inhibitor. Typical symptoms include recurrent swelling without hives
and unexplained abdominal pain
that typically lasts 3-5 days on average.
Each child of a parent with hae has a 50% risk of having the disease and it should not skip generations. An allergist can help.