Study to Investigate the Effects of Hot Drinks on Nasal Airway Resistance and Symptoms of Common Cold

Inclusion Criteria:

• Aged over 18 years.
• Has given informed consent.
• Is suffering from common cold/flu like illness
• Indicates they are suffering from at least three common cold symptoms (runny nose, sneezing, blocked nose, sore throat, cough) and scores at least 2 symptoms as moderate on four point ordinal scale of (0=not present, 1=mild, 2=moderate, 3=severe)

Exclusion Criteria:

Subjects will not be enrolled in the study if any of the following criteria are met:

• The subject is unwilling to sign the consent form.
• The subject has a clinically significant cardiovascular, endocrinological, neurological, respiratory, gastrointestinal disease or any other disease that is considered by the investigator as a reason for exclusion.
• The subject has a severe nasal septal deviation or other condition that could cause nasal obstruction such as the presence of nasal polyps.
• The subject has had nasal surgery in the past that in the opinion of the investigator may influence symptom scores or nasal airway resistance
• The subject has ingested any alcohol within the previous 12 hours or more than 4 units of alcohol in the previous 24 hours
• The subject is a drug or alcohol abuser
• The subject is taking any prescribed medication other than for contraception
• The subject has had common cold for more than 7 days
• The subject has recently taken a common cold medicine that in the opinion of the investigator may influence symptom scores or nasal airway resistance (analgesics, nasal decongestants, cough medicines)
• The subject has ingested any hot food or drink within the previous hour