A 29 yr old man develops erythematous plaques with maceration and few erosions over right axilla and perineum, plaques were associated with mild itching. Potassium hydroxide smear was done – fungal elements were negative.Other routine investigations were postitive. Biopsy was diagnostic of psoriasis. Inverse psoriasis usually occurs in patients with plaque psoriasis but in this patient inverse psoriasis occured without plaque psoriais. Erosions decreased after using systemic antibiotics for 1 week, sodium fusidate 2 % cream twice daily for 2 weeks. Macerations decreased after application of tacrolimus 0.1% gel twice daily for 1 month, followed by once daily for two months.