Hi, Your son seems to have Schamberg s disease.. It is a mild form of capillaritis. Also known as progressive pigmented purpuric dermatosis. It is a skin disease with purpura due to leaking from capillaries close to the skin surface. It most often affects the legs and spreads slowly. The discoloration is brown/orange due to haemosiderin deposition in the skin. Schamberg s disease usually runs a chronic course with frequent exacerbations and remissions.The rash may be present for many years with slow extension. Lesions may occasionally disappear spontaneously. Lesions consist of... Asymmetrical brown/orange patches. Non-blanchable purpura. Petechiae called cayenne pepper spots (develop at the edge of old lesions). The disease is benign and dose not lead to severe morbidity. It may be healed by itself. Give him mild steroid cream to apply. He may take vitamin C and vitamin K. Tell him to Keep the legs elevated during sleep. Pentoxyphyllin may be helpful. I hope you got my answer. Regards. Dr. Ilyas Patel MD