Suggest Treatment For Watery Eyes, Sneezing And Coughing

hi can someone die with hay fever or bacterial infection if left untreated........i have been experiencing watery eye, sneezing, coughing that hurts and leaves a burning in the chest and excess white mucus. also i have been experiencing some breathing problems, and swollen lymph node in my neck just under the jaw to my left...... the doctor i went to precribed antibiotics along with benadryl and paracetomol. can