Dear sahib sarna,
AEC higher than 7-8% is popularly branded as eosinophilia
. Usually presents with the symptoms you have enumerated as above. No use in taking antibiotics. Usually controlled by taking antiallergics and hetrazine for 3 wks.
As far as blood tinged sputum is concerned may be due to over excessive forceful coughing, Also you may consult a pulmonologist
to rule out granulomatous diseases. Use anti reflux medicines for stomatitis
. Take extra fluid.