Self-care advice
As well as offering a cough medicine to help relieve the symptoms, you can provide customers with self-care advice:5

Rest

Drink plenty of fluids

Warm lemon and honey drinks have been found to be effective (NOT suitable for babies
under 1 year)

Ideally, stay at home and avoid contact with other people, particularly those with a fever

If the cough has a specific cause (e.g. heartburn or an allergy) treating this may help

Quitting smoking is likely to help
In summary
Most coughs are caused by colds and flu-like illness, and will usually clear up on their own after 3-4 weeks
For adults and older children, OTC cough medicines, decongestants, antihistamines and pain relievers offer some symptom relief. However, they won't prevent a cough or shorten its duration
Be alert for conditions such as Covid-19, heartburn, asthma, allergies, and some medicines, which may be the cause of cough in the absence of a respiratory infection
Benylin has a wide range of products to provide relief from different types of cough which are suitable for a range of ages.