Apparatus for inspecting allergic reaction

A method of inspecting an allergic reaction of a skin after subjected to a patch test for checking an allergen(s), which comprises the steps of:

• projecting a laser light upon an object having a bloodstream subjected to the patch test by a light-projecting means;
• receiving a plurality of laser beams scattered by blood cells at the plurality of points on a surface of the object subjected to the patch test by a light-receiving means;
• storing output signals read out of the light receiving elements by a memory means;
• calculating from the output signals stored in the memory means to derive information about the bloodstream by a calculating means;
• and
• displaying the information in a map state by a display means;
• wherein relative values of the respective bloodstreams at measured portions to be tested the allergic reaction or subjected to a patch test are calculated by the calculating means based on an average value of the bloodstreams measured at portions of the skin other than the portion subjected to the patch test and not affected by the patch test as a standard value, and
• the relative values obtained by the calculating means are plotted by the display means as a two- or three-dimensional map.