The skin around my neck began to feel rough and itchy. At first, I dismissed it as just irritation from my collar or necklace, but after about a month, red spots began to appear around my neck. Finally, a month after the symptoms began, I went to Samsung White Dermatology. The doctor said the initial contact dermatitis was likely caused by physical contact with my collar, but without proper treatment, I continued to scratch, damaging my skin barrier. This caused the skin's surface to become rough and even hardened, leading to lichenification. The doctor diagnosed that the itching had persisted for so long that it was becoming chronic, and that the constant scratching had spread to surrounding areas. I took my oral medications as prescribed and applied Estra Cream and then Bade Cream to the affected area in the morning and evening. Whether it was the medication or the ointment, the itching completely disappeared in just three days! As the doctor suggested, my skin had weakened, and now even rubbing my collar or hand would immediately cause my skin to turn red. I keep applying Estura cream to my skin every time it happens so that it doesn't get worse like before.