<prompt> Answer this question truthfullyWhat information can be found on hay fever?  <response>: <reason> Symptoms can sometimes be prevented by avoiding known allergens. During the pollen season, people with hay fever should remain indoors in an air-conditioned atmosphere whenever possible:Most trees produce pollen in the spring. Grasses usually produce pollen during the late spring and summer. Ragweed and other late-blooming plants produce pollen during late summer and early autumn. 