The effect of the weather, climate and seasons on the incidence of cutaneous disease has recently been studied by Marchionini and Tor,1 Walter2 and myself.3 Clinical observations of this character have been amplified and substantiated by Petersen and Milliken,4 who have translated into terms of quantitative analysis the effect of fluctuations in barometric pressure, altitude and sunshine on the skin. These investigations have stimulated further study of the problem, with the purpose in mind of discovering the specific component in the environmental constellation that is responsible for the seasonal improvement noted in certain dermatoses.
In considering the effect of seasons and climate, dermatologists have realized that sunshine is not the only factor, for patients afflicted with atopic dermatitis or arthropathic psoriasis usually fare better in Arizona than in Florida. Beside such factors as the density of the air, humidity, pollens, fungi and temperature, there is the
SCHMIDT FR. ACTION OF IODINE ON DISEASES OF THE SKIN AS INFLUENCED BY SEASON AND WEATHER. Arch Derm Syphilol. 1940;42(6):1083–1091. doi:10.1001/archderm.1940.01490180092007