What Causes Burning Sensation In The Tongue And Lips After Taking Z-Pak?

History...had sore throat for couple weeks, then chest congestion fever, body aches and total weakness about 5 days. Cough and chestcongestion began at this time had already been on Augmrntiin for 10 days. Dr. Said viral bronchitis, gave steroid, inhaler and med for cough. Between 2-3 weeks After dr. Visit cough and chest pressure got worse. Dr. Said X-ray machine turned off for day but it could be walking pneumonia and if conditions worsened or didn’t improve in another 3 weeks to see family Doctor again. He gave me Z-pack and now 1 week later cough and chest pressure still bothersome. New symptom throat, tongue and lips are stinging and burning too. Also diarrhea much of this time, sometimes severe. Can take Imodium to control that, but how do I relieve painful tongue, lips and throat. Whew....hope this makes sense, feeling kind of miserabl.