Cough is the most bothersome symptom for patients with the common cold.

The objective of the study is to compare the phytotherapic "Bromelin", a compound preparation of honey from the bee apis mellifera with the extract of the pineapple (Ananas comosus) with placebo in reducing cough episodes in patients with the common cold.

Common cold is very frequent and cough is one of the most troublesome symptoms. Over-the-counter medications are used by patients without prescription, many times with important side effects.

Bromelin, a compound made with honey and pineapple extract could offer cough symptomatic relief as a soothing agent.

This study aims to compare this compound with placebo in reducing cough in patients with common cold in an clinical trial designed in conformity to CONSORT guidelines.

Inclusion Criteria:

• cough for less than 24 hours
• common cold symptoms : nasal obstruction, headache, myalgias, runny nose.

Exclusion Criteria:

• declared chronic pulmonary diseases declared Nervous diseases declared Diabetes declared cardiac diseases known primary or secondary immunodeficiencies