KR is a 47 yom who has had common cold symptoms for 3 days. His most bothersome symptoms are a cough and sore throat due to the coughing. He states that he has not been coughing up any mucous and that the coughing is preventing good rest throughout the day and bothering him. What is the best recommendation?
Refer to physician
Initiate benzocaine and dextromethorphan
Initiate dextromethorphan only
Initiate benzocaine only
Initiate chlorpheniramine