die Heilung
healing
The process of recovering after an illness or injury; the restoration of health.
Die Heilung des komplizierten Bruchs wird mehrere Monate dauern.
The healing of the complicated fracture will take several months.

healing / cure
Loading your saved state.
healing
The process of recovering after an illness or injury; the restoration of health.
Die Heilung des komplizierten Bruchs wird mehrere Monate dauern.
The healing of the complicated fracture will take several months.

'Die Heilung' (healing/cure) is the noun from the verb 'heilen' (to heal). The ending '-ung' forms nouns from verbs, usually describing a process or its result. All nouns ending in '-ung' are feminine.
Die Wunde heilt gut.
The wound is healing well.
The verbs show whether the process (m01) or the result (m02) is meant. Verbs like 'dauern' (to last/take), 'fördern' (to promote), or 'unterstützen' (to support) describe the process. Phrases like 'es gibt eine/keine Heilung' (there is/is no cure) or 'eine Heilung finden' (to find a cure) refer to the result.
Eine positive Einstellung kann die Heilung unterstützen.
A positive attitude can support healing.
When talking about the process of recovery, people often speak of the 'Heilung einer Wunde' (healing of a wound) or the 'Heilung eines Knochenbruchs' (healing of a bone fracture). You can wish someone 'gute Heilung' (a good recovery).
Ruhe und Geduld sind für die Heilung wichtig.
Rest and patience are important for healing.
When 'Heilung' means the result (the elimination of an illness), it is often used with the preposition 'für' (for). You look for 'eine Heilung für eine Krankheit' (a cure for a disease).
Gibt es eine Heilung für diese Art von Krebs?
Is there a cure for this type of cancer?
treatment
'die Behandlung' and 'die Heilung' both belong to the topic of illness and health, but they do not mean the same thing. 'die Behandlung' refers to the measures a doctor or therapist takes, for example giving medication or recommending exercises. 'die Heilung' is the process of getting well or the result when the illness is gone. The words are easy to confuse because treatment can lead to healing. But treatment does not always guarantee a cure.

Nach der Operation braucht die Heilung noch etwas Zeit.
After the operation, the healing still needs some time.
Am Telefon fragt sie nach dem nächsten Termin für die Behandlung.
On the phone, she asks about the next appointment for the treatment.