Usage patterns
病にかかるto contract an illness
He contracted a serious illness when he was young.
〈人〉の病が出るsomeone's bad habit rears its head
His spendthrift habit reared its head again.
病を患うto suffer from an illness
My grandfather had suffered from a heart condition for many years.
病と闘うto fight (against) an illness
She kept working while fighting her illness.
病に苦しむto be tormented by an illness
He suffered for a long time from an illness of unknown cause.