1) Intertrigo – red macule as a mirror image in either side of the body fold, common sites are inframammary, axillary, inguinal, umbilical, sacral, neck, between fingers, anterior elbow areas, an initial macule may progress to oozing, exudation, erosion, painful fissuring, crusting, cellulitis, satellite papules, and pustules suggest C. albicans, Mx – manage usually underlying problems like obesity, diabetes, sweatiness, wetness and maceration with low hygiene, cellulitis needs Tx if present, promote drying of the area, prevent skin apposition, aerate the body fold, steroid-antibiotic creams,
2) Seborrheic dermatitis – well demarcated area of fine, dry scaling,erythema, itchy lesions, papules and scales are the main primary lesions, common areas are scalp, face (eye brows, eye lids, nasolabial folds, postauricular groove, moustache and beard), upper chest and interscapular region, secondary infection of the lesions can ause impetigo, folliculits in addition, chronic recurrent disease, relapses triggered by fatigue, stress, cold weather, common in infancy and adults and not seen in between infancy and adulthood, Mx – ketoconazole cream or lotion 2%, shampoos containing 0.1% triamcinolone, 2.5% selenium shampoo (5-10 min application 2-3 times weekly), exensive lesions which are inflammatory apply a topical steroid (in ascending potency) cream, lotion or gel, thick crusts require a keratolytic like salicylic acid, crusts can also removed by application of warm mineral oil for 1-2 hrs and then washing off with a soap, topical metronidazole effective in some, widespread unresponsive cases oral antifungals (ketoconazole 200 mg daily for 2-4 weeks OR itraconazole 100 mg daily for 3 weeks OR itraconazole 200 mg daily for week OR terbinafine 250 mg daily for 4-6 weeks), oral antibiotics for clinically obvious skin infection, dermatology referral for severe cases for isotretinoin or immunomodulator therapy which helps many patients, remissions can be maintained by (in scalp and chest disease) by prophylactic antifungals, frequent washing with soap and water,
3) Irritant dermatitis
4) Tinea pedis – Dermatophytoses - fissuring, maceration, scaling in between the toes, fine scaly rash of moccasin distribution
5) Erythrasma – mild, chronic, localized lesion, dry, smooth, scaly, brownish, well-demarcated area, in the axillary, inframammary, genitocrural folds, fissuring in severe cases, diagnosed by coral-red fluorescence under Wood’s light, Mx – keep the area clean, dry well aerated, erythromycin or tetracycline 250 mg qid for 10-21 days, topical miconazole or clotrimazole,