My son drink a mixture of 100gm of concrete coffee and tea extract and sugar and honey and water and then he heat it till it forms a dark and thick solutions and then he put in close container for 3 weeks and then he drink it after some time. After a month he have red rash and cough, vomiting and thick saliva and chest full ness and cold and mild eye starts paining lashes falls radiply so plez refer which test should do detection of bacterial or viral infections.