A lot of small red pimples arose on the chest what reason is

In the chest from small red lumps, there are several circumstances to consider: 1, folliculitis: folliculitis is generally good hair in the sebum overflow site, especially young men and women good hair, sebum overflow increased with the skin surface of Staphylococcus aureus mixed to form local inflammation of hair follicles, can consider local application of antibiotics, serious oral antibiotics to treat;2, seborrheic dermatitis: Seborrheic dermatitis is also due to abnormal sebum secretion and skin surface Malassezia or Propionibacterium acnes, Pityrosporum mixed, resulting in changes in sebum components caused by desquamation and itching symptoms. If mild, can use antifungal agents or hormonal ointment, can play a good therapeutic effect;3, eczema: Eczema can occur in various parts of the human body, the chest is also a good part of eczema, especially this solar dermatitis, after light, especially in the summer can also show local red small papules.