otitis externa 
Defination
Refers to an infection of the ear canal, the tube leading from the outside opening of the ear in towards the ear drum.
Pathophysiology
Is a painful condition caused when irritation or infective agents come into contact with the skin of the external ear.
The result is either an allergic response or inflammation with or without infection.
An inflammation and infection of the external auditory canal.
Signs and symptoms
A discharge of liquid or pus from the ear
Ear canal- erythema and edema
Purulent exudate common
Pain, tenderness or pulling of the pinna, redness and itching of the skin lining of the ear.
Some degree of temporary hearing loss.
Nursing care plan
Nursing intervention
Dry swabbing - this gently mops out ear wax from your ear canal.
Gentle remove any discharge, earwax or debris from your outer ear using a twist of cotton wool.
Warm the ear drops by holding them in your hands for a few minutes, as cold ear drops can make you feel dizzy.
Encourage a patient to remove anything from your affected ear that may cause an allergic reaction, such as hearing aids, ear plugs and earrings.
Give antibiotic ear drops