Thanks for your query,
Recurrent nose bleeds are due to infection/nose picking/trauma/bleeding disorder
Since he is having upper respiratory symptoms,there will be dryness of nasal mucosa.
compresses over nose in case of bleeding.
Apply firm pressure over nose for 5 minutes.
Put liquid paraffin
drops in both nostrils .
Give plenty of fluids.
If symptoms persist get him evaluated by pediatrician
Wishing your child good health.