I am afraid you need to edit drush files to achieve it.. Currently label support is not there if you see below code in contributions/drush/commands/core/field.drush.inc
function drush_field_create($bundle) {
$entity_type = drush_get_option('entity_type', 'node');
$args = func_get_args();
array_shift($args);
if (empty($args)) {
// Just one item in this array for now.
$args[] = drush_field_create_wizard();
}
// Iterate over each field spec.
foreach ($args as $string) {
list($name, $type, $widget) = explode(',', $string);
$info = field_info_field($name);
if (empty($info)) {
// Field does not exist already. Create it.
$field = array(
'field_name' => $name,
'type' => $type,
);
drush_op('field_create_field', $field);
}
// Create the instance.
$instance = array(
'field_name' => $name,
'entity_type' => $entity_type,
'bundle' => $bundle,
);
if ($widget) {
$instance['widget'] = array('type' => $widget);
}
drush_op('field_create_instance', $instance);
$urls[] = url(drush_field_ui_bundle_admin_path($entity_type, $bundle) . '/fields/' . $name, array('absolute' => TRUE));
}
drush_print(implode(' ', $urls));
}
?>
As you see above only field_name and type is taken from args.. To create label also you need to change code to below
function drush_field_create($bundle) {
$entity_type = drush_get_option('entity_type', 'node');
$args = func_get_args();
array_shift($args);
if (empty($args)) {
// Just one item in this array for now.
$args[] = drush_field_create_wizard();
}
// Iterate over each field spec.
foreach ($args as $string) {
list($name, $label, $type, $widget) = explode(',', $string);
$info = field_info_field($name);
if (empty($info)) {
// Field does not exist already. Create it.
$field = array(
'field_name' => $name,
'type' => $type,
'label' => $label,
);
drush_op('field_create_field', $field);
}
// Create the instance.
$instance = array(
'field_name' => $name,
'entity_type' => $entity_type,
'bundle' => $bundle,
);
if ($widget) {
$instance['widget'] = array('type' => $widget);
}
drush_op('field_create_instance', $instance);
$urls[] = url(drush_field_ui_bundle_admin_path($entity_type, $bundle) . '/fields/' . $name, array('absolute' => TRUE));
}
drush_print(implode(' ', $urls));
}
?>
and use command like
drush field-create [content-type] [field-machine-name],[field-label],[field-type],[field-widget-type]