thank you for your query.
your child has an infection of the ear which is causing the drainage
from a ruptured eardrum
or through a ventilation tube.
i would suggest you to start anti-biotics after referencing with an ENT specialist
as for the fever,you can give your child Meftal-P
syrup.it will decrease the temperature immediately.
continue tepid sponging and calpal..
the symptoms should subside in 5 days time.
wishing you good health.