This constant process leads to lichenification. … The central zone is the area of maximum lichenification and hyperpigmentation. … The itching involved can be more easily controlled, while the features of lichenification take several weeks to show significant improvement.
Patients with this condition resort to repetitive itching and scratching which leads to lichenification and hyperkeratosis. … Chronic and repetitive scratching, picking, or rubbing of the nodules may result in permanent changes to the skin, including nodular lichenification, hyperkeratosis, hyperpigmentation … 
Lipodermatosclerosis, lichenification, ulceration and bacterial infection follow in severe cases. … Chronically, physical examination may present with lichenification and hyperpigmentation from scratching and rubbing due to pruritis. … If not treated properly, there would be an increase incidence of lichenification, lipodermatosclerosis, cellulitis and contact allergy dermatitis.
After repetitive exposure, patients may present with lichenification, hypopigmentation, hyperpigmentation and scarring of the skin. … Although blistering of the skin is rather uncommon, repeated exposure can lead to lichenification, loss of nail lunulae, development of pseudovesicles and other chronic skin …