The EAACI ENT Section Board and GA2LEN organised the 6th Symposium on Experimental Rhinology and Immunology of the Nose (SERIN) from 9th to 11th February 2006, in Barcelona, Spain. The objective of the meeting was to gather together "people working in the rhinology field, from young researchers to experienced leaders, and to let them discuss the new findings and future scopes of the field in a free and open atmosphere" (J. Mullol).