welcome to HealthcareMagic
with weight loss
needs investigation so you did and it shows pericardial effusion
near lungs and the ESR is also 55 which is High.The S.creatinine
of 1.7 is also slightly high so you should get it repeated after 15 days.Presently the symptoms of cough for more than 15 days;weight loss raised ESR with or without evening fever;and effusion make a picture of Tuberculosis
.But you even had high Eiosinophils which can cause cough.Please consult a Physician(M.D Medicine /chest )who will examine you and advise treatment accordingly as in your case it will be necessary to rule out Tuberculosis or other chronic disease.