 [ Symptoms ] can a child have strep throat with no sorethroat or fever he has welts on his back and arms and face had ear infection and was treated with amoxil then 2 day after last dose developed nausea and vomiting and diarrhea and then the welts showed up took him to md office and he was tested for strep and it was positive he has no sore throat or fever he was put on amoxil again and was also told to take benadryl [ Disease ] a description of your symptoms may be all a doctor requires to diagnose heartburn but sometimes additional testing may be necessary the esophagus can be viewed through an endoscope a long thin flexible tube inserted through the mouth or by x ray sometimes your doctor may recommend a 24 hour esophageal ph probe study especially if you have unusual symptoms such as throat or chest or abdominal pain coughing or asthma like symptoms in this test a long narrow flexible tube is inserted through the nose down into the esophagus and a probe is left there for 24 hours this probe detects acid levels to determine if it correlates with your symptoms a newer technique called bravo measures 24 hour acid it is done using wireless ph sensors which eliminates the need for a tube insertion to detect if your heart is the cause of your symptoms an electrocardiogram a recording of the heart is electrical activity may be taken