不治

to die of illness or injury despite receiving medical help

no; not so / (bound form) not; un-

to rule / to govern / to manage / to control / to harness (a river) / to treat (a disease) / to wipe out (a pest) / to punish / to research

incurable disease

to recover spontaneously (from an illness) / to get better without medical treatment

to treat the symptoms but not the root cause