helloo.. its very common prob in kids dat due to cold they have ear pain... best thing is avoid nose blowing as much as possible..do steam inhalations...keep checking ears for any discharge coming out as cold has high chances of causing ear infections too due to eustachian tube .... once the cold is cured...itl come down...if it doesnt then can meet a paediatrician...other common causes of ear pain is ear wax...do not try to clear wax with a bud as generally itl push d dirt inside...you can use wax solubles like soliwax..consult an ent specislist as examination wil be needed