The first is that the person has a lot of red bumps on the chest, consider the following diseases: 1, eczema, is due to allergic factors, may be sunlight ultraviolet radiation on the chest area caused by allergies, or due to contact with chemical fiber, cashmere clothing or scarf caused by allergies, in clinical treatment can be oral Orlistatine hydrochloride tablets, or Epinastine hydrochloride capsules combined with compound glycyrrhizic acid capsule, with Baixian Xia Taje capsule 2. Lupus erythematosus, which belongs to the subacute subtype, can appear papules with scales on them, and some of the papules can expand around in a ring shape.