Homeopathic Remedies for Cough

Aconitum napellus:

This remedy is indicated when a cough has come on suddenly—often from exposure to cold wind, or after a traumatic experience. The cough is likely to be sharp, short, dry, and constant. It may begin during sleep and wake the person up, or can start when the person goes from a cool place into a warmer one. Restlessness and fear are typical when this remedy is needed. It is often used in early stages of croup and asthma.
Belladonna:

A cough that comes on suddenly, often with the feeling of a speck or tickle in the throat, is a strong indication for this remedy. The cough is intense and nagging and the person may feel as if the head is about to burst. Sensations of heat, a reddened face, and dilated pupils are often seen when this remedy is needed.

Antimonium tartaricum. [Ant-t]

With this remedy the child is worse when excited or angry, or when eating; the cough culminates in vomiting of mucus and food. There is much rattling of mucus in the chest, but the expectoration is slight. when approached; the tongue will be white and weakness will be present. If diarrhoea be present with great debility and depression of vital forces, or if the child vomits its supper shortly after midnight, Antimonium tartaricum will be the remedy. It also has marked aggravation form warm drinks.

Bryonia:

This remedy is indicated when a cold goes into the chest and the cough is very painful and dry. The person feels worse from any movement, and may even need to hold his or her sides or press against the chest to keep it still. The cough can also make the head or stomach hurt, and digestion may be upset. The mouth can be dry and the person may be thirsty. If someone is very grumpy when ill and wants to be left alone, not talked to or disturbed, Bryonia is likely to be the remedy.