My 29 Year Old Son Wakes Up Daily With Severe

My 29 year old son wakes up daily with severe eye swelling and swelling across the bridge of his nose. This has been going on for about 9 years. He's been to 6 different doctors....General practitioner, allergist, endocrinologist, chiropractor, dermatologist and homeopathic doctor. His next visit will be to a specialist at the Mayo Clinic. In the meantime he suffers, especially emotionally. He works in retail and he's very conscious about the way he looks. He looks like he'sdd been in a fight every morning. By evening the swelling has gone down, but not completely gone. HELP