您好,我家宝宝20个月了,身上和手,脚上长了像几个小泡泡里面带水,化验血液的结果WBC14.7LYMPH#8.96LYMPH%61.1MONO#1.28MONO%8.7NEUT#3.96NEUT%27.0EO#0.40EQ%2.7BASO#0.07BASO%0.5ALY0.36ALY%2.4LIC0.17LIC%1.2RBC5.5HGB132HCT40.5MCV74MCH24.4MCHC325PIT273MPV8.1PDW13.0PCT0.220RDW515.45怎么回事,应该用什么样的药物治疗