A lot of bumps on the face suddenly considered the following cases: 1, rosacea: the causative factors of this disease is not clear, may be related to genetic factors, cold, heat stimulation factors, long-term application of poor quality cosmetics or the application of glucocorticoid ointment long-term application of factors such as this disease may also be triggered by the combination of mite infection. The treatment can be oral anti-malarial drugs, hydroxychloroquine sulfate tablets anti-inflammatory treatment. 2, eczema: may be due to sunlight ultraviolet radiation allergy or consumption of a large number of spicy, irritating food, including raw onion, raw garlic, chili caused by or due to sunlight ultraviolet radiation and triggered.