<human>: Dear doctor, early this year,  my Dad age 61, he has been diagnosed with eosinophilia, report shows Acidophilic Cell %: 9.4, above the healthy range (0.5-5%), Absolute Value of Eosinophil: 0.73 above the healthy range (0.02-0.5X10^9/L). Top Chinese hospitals have held a few consultations, however the cause cannot be found. 2 years ago, he starts to get red dots mainly on arms and legs, then dots expand to bigger circles and then disappear. In the mean time, he also gets tumour under skin, mainly on legs, arms, neck and forehead. Looking forward to hearing back from you.
<bot>: Hi, Your father has eosinophilic and tumor under skin. Eosinophils play two roles in your immune system, Destroying foreign substances and Regulating inflammationEosinophilia occurs when either many eosinophils are recruited to a specific site in your body or bone marrow produces too many eosinophils. This can be caused by a variety of conditions, diseases and factors, includingParasitic and fungal diseasesAllergies, including to medications or Food Chat Doctor.  Hypereosinophilic syn