The following treatments can help to soften the thickened skin and make it less noticeable: Emollients Keratolytics (such as salicylic acid in propylene glycol) Topical retinoids Topical vitamin D ointment (calcipotriol) Systemic retinoids (acitretin) Antifungal medication may help if the condition occurs along with a fungal infection. 
What are the treatments for Unna-Thost palmoplantar keratoderma ?