Lichen planus is commonly seen inflammatory disease that involves the mucosae and skin. The incidence of lichen planus is 0.1-4%. Palmoplantar lichen planus is a rare variant of the disease. Palmoplantar lichen planus has many clinical forms. Erosive or ulcerative palmoplantar lichen planus is a very rare form of classical lichen planus that often involves oral and genital mucosae. A 59-year-old woman presented to our clinic complaining with a painful wound on her right heel that did not heal despite long-term treatments. Biopsy was performed with a initial diagnosis of squamous cell carcinoma. As a result of biopsy, lichen planus was diagnosed. In the dermatological examination of the patient, there was no other skin lesion of lichen planus. The patient was also being followed and treated by rheumatology with the diagnosis of Sjogren's syndrome. She had ANA + in her blood test analysis. Systemic steroid, oral retinoid and PUVA treatments were received to the patient. Partial recovery was achieved in the patient. Erosive plantar lichen planus has been very few reported in the literature. Erosive plantar lichen planus is difficult to treat and its treatment have not been standardized because of rarity. In the literature, its associations with autoimmune thyroiditis, primary biliary cirrhosis and Sjögren's syndrome have been reported. Herein, we'd like to present this female case because it is a rare variant of classical lichen planus and accompanies Sjögren's syndrome.