Study on Hypertonic Saline Nasal Spray

Inclusion Criteria: 1. Aged18 years and over 2. Has given written informed consent, and received a copy of their signed consent form prior to any study related procedures 3. Subject considers they are suffering from a common cold of no more than 7 days duration (common cold will be self-diagnosed but all patients will be screened by a doctor and nasal examinations will be performed as needed to establish eligibility of patients for study). 4. Subject on entry to the study has a symptom score of 1 or greater for blocked nose on four point ordinal scale Exclusion Criteria: 1. Have a known hypersensitivity or are allergic to any component of the test product 2. The subject has a clinically significant cardiovascular, endocrinological, neurological, respiratory, gastrointestinal disease or a history or any current disease that is considered by the investigator as a reason for exclusion e.g. current allergic rhinitis, chronic obstructive pulmonary disease 3. The subject has a severe nasal septal deviation or other condition that could cause nasal obstruction such as the presence of nasal polyps. 4. The subject has had nasal or sinus surgery in the past that in the opinion of the investigator may influence symptom scores 5. The subject has a history of alcohol or other substance abuse in previous year 6. The subject is taking any prescribed medication other than for contraception, that is considered by the investigator as a reason for exclusion e.g. systemic steroids, intranasal medicines, antibiotics. 7. The subject has had common cold or flu like symptoms for more than seven days 8. The subject has recently taken a common cold medicine that in the opinion of the investigator may influence baseline symptom scores (such as nasal decongestants) 9. The subject is a current smoker (more than 2 cigarettes, pipes, cigars a day) 10. The subject is related to any study personnel 11. The subject has received any investigational drug or participated in a clinical trial within 4 weeks of entry to this study 12. The subject is pregnant or lactating -