The appearance of redness, itching, and flakiness on the surface of the skin on the neck requires careful observation of the clinical appearance of the area of flakiness. If it is diffuse redness, white or reddish flakes around the neck, it may be allergic dermatitis formed by allergic and irritant factors, or contact dermatitis caused by contact with the collars of some special foreign objects, which can be relieved by taking oral loratadine tablets or cetirizine hydrochloride tablets, and then topically applying fluticasone propionate cream or trimethoprim cream to effectively make the symptoms of redness and peeling subside, thus achieving the purpose of treatment. The redness and peeling of the skin can be effectively treated by making the redness and peeling subside. If the skin lesions on the neck are ring-shaped changes, plaque-like redness, peeling skin, considering the possibility of psoriasis, after scraping the skin flakes can be seen point-like bleeding, basically can be clearly diagnosed, this disease is a genetic factor-based special erythematous scaly disease, there is no way to completely eradicate.