Red rash refers to a red rash of small mound-shaped grains that rise high above the skin surface in a bounded protrusion. However, there is also a rash that does not rise above the surface of the skin and is not felt by hand. So, what could be the disease of red rash on the face? The following are the possible diseases of facial rashes: 1, facial dermatitis (eczema), seborrheic dermatitis, atopic dermatitis and other dermatitis eczema; 2, folliculitis, boils, dermatitis and other bacterial skin infections; 3, acne vulgaris, perioral dermatitis, occupational acne, cosmetic acne, eruptive acne; 4, rosacea (rosacea); 5, hormone-dependent dermatitis; 6, herpes; 7, psoriasis; 8, ringworm 9. Lupus erythematosus; 10. Facial disseminated lupus cornea; 11. Lymphocytic infiltration; 12. Skin tumors.