My son has fewer 103Fº since the night. I'm giving him Tylenol, vitamins and anty cough and sneeze syrop, but it still keeps minimum 101 or 102 and sometimes higher . He coughs so hard with phlegm, nose running, he is week and doesn't eat. I hope its just a cold and not infection. If tonight he feels the same i'm going to take him to the doctor tomorrow . Do you think it can be an infection?