my mum, who does not have me/cfs but used to haver to close windows during the spring pollen season, is helped greatly by salt inhalers. they help me too though myy difficulties with pollen are not that great. i'd often wondered if bromelain, which is an enzyme in pineapples used to tenderize meat as it digests protein, would be usefull as pollen is a protein...seem,s it is used for such things. eatiing sprouted mung beans or lentils could help too as these are packed with protease that will circulate your system scavenging on undigested whole proteins. salt inalers would be my first port o' call. its possible they'll only relieve though and not totally negate it. asthma and hayfever are what they are mainly used for i believe.