###Human: What is the reason for high monocyte and eosinophil? ###Assistant: Hi. Rheumatoid arthritis is one of the causes for high monocyte count and multisystemic involvement. Hence, treatment for that is nonsteroidal anti-inflammatory drugs and disease modifying drugs like Leflunomide, etc. The high eosinophil count causes include allergy, parasitic infection, skin conditions and pulmonary eosinophilia, etc. According to the cause, the specific treatment can be given. For allergy, antiallergic medication like Fexofenadine is useful. For further information consult a hematologist online -->