National Geographic : 1935 Feb
Hay Fever SANY a hay fever sufferer can point to a calendar and foretell almost to the day when his misery will begin. Often, he knows how long it will last. His acute distress is caused by pollen car ried in the air from a particular kind of tree or grass or weed or, in rare instances, a flower. Some people may be affected by several types of pollen. Little or no relief may be secured until the particular types are known and proper measures are taken to immunize against them. It requires patience on the part of the sufferer and thoroughness and understand ing on the part of his doctor to find out, in advance of the dreaded season, whether hay fever will be brought on by a tree in April or May, a grass in June or July, or a weed in August or September. One of the methods by which the doctor finds out which pollen causes hay fever consists of making a series of tiny scratches, "ter mm about an eighth of an inch long, which penetrate the outer skin. He may make from eight to thirty tests, the number depending upon the variety of air-borne pollens in the patient's locality. On each scratch the doctor applies one drop of a different pollen solution. If a particular pollen has caused past trouble, a slight, itching elevation will appear on the skin where the scratch was made. Based on the results of these tests, the doctor knows just what to do and when to begin to build up the immunity of his patient against the individual trouble making pollen or pollens. Some stubborn cases do not yield to this immunizing process, but a majority of hay fever patients have been made far more comfortable by it. Many of them have been relieved completely. The time to begin the battle against 1935 hay fever is now! METROPOLITAN LIFE INSURANCE COMPANY FREDERICK H. ECKER, PRESIDENT , J, ONE MADISON AVE., NEW YORK, N. Y. © 1935 M.L.I.CO. "Mention the Geographic-It identifies you."