Hi. Thank for posting your concern at HCM Judging from the description it seems that due to scratching the skin in that area consequent upon yeast infection, the skin in that area has become Lichenified/eczematous which in turn generates more sensation to itch, thereby leading to an itch-scratch cycle. In such a case i would advice my patients to take an oral antihistamine which will control itching thus breaking the itch-scratch cycle. Application of a topical moderately potent steroid will help too. Another possibility which needs to be ruled out is that of Lichen simplex et atrophicus which is very itchy at these sites but need to be confirmed only by a dermatologist on physical examination take care regards