Facial lymphoedema following throat cancer

Hi I'm wondering if anyone has any advice.

My brother is a cancer survivor of 10 years. Throat and lung cancer. He makes us proud everyday. However he is currently suffering dreadfully with facial lymphoedema. His face is so swollen, he can hardly talk and is very down. He has been told to massage his face but so far we haven't see any improvements. He has recieved an appointment for a specialist but it's not until April next year... we're just not sure where to turn next.