Red rash on the face of leukemia patients should be treated according to the cause of the disease, generally common causes are acne, allergic dermatitis and eczema, etc. The methods adopted include keeping the face clean, avoiding allergens and medication. Leukemia can lead to small bleeding spots on the face due to thrombocytopenia, which usually does not show up as a red rash. The following causes of red rash on the face are common: 1. acne: acne usually appears in the face of young people, can be manifested as a red rash, generally need to keep the face clean, if there is a small pustule, can be anti-infective treatment, such as clindamycin ointment and other topical treatment. 2. Allergic dermatitis: a common cause of facial rashes, mostly caused by cosmetics, pollen and other allergies, first of all, we should actively seek and avoid allergens, if serious, you can take loratadine and other drugs. 3. Eczema: Eczema is caused by a variety of factors that cause inflammatory reactions in the skin, the acute stage can appear red rash, usually accompanied by itching, you can use glycerine lotion and so on. The above drugs should be applied under the guidance of a doctor. There may be other reasons for the red rash on the face of leukemia, which should be timely to the regular hospital, by the doctor according to the specific condition to determine the cause of the occurrence of the cause of the disease to give the correct treatment method.