Allergen skin prick tests (SPT) are very sensitive and specific tests to detect allergic
sensitization in atopic patients. Certain factors like antihistamines, antidepressant therapies
or circadian rhythms can alter the results of SPT. In women, the changes in endogenous
hormone levels throughout the menstrual cycle may affect the allergic responses and natural
course of allergic diseases. The aim of this study was to investigate the probable influence of
the phases of the menstrual cycle on SPT reactivity to allergen extracts and histamine. Forty …