Efudex - How long do you apply Efudix 5% cream?

I cannot exactly remember as I broke my leg and subsequently told that I have osteoporosis

How to use Efudex Cream:
Use Efudex Cream as directed by your doctor. Check the label on the medicine for exact dosing instructions.

Use a nonmetallic applicator or wear rubber gloves while applying Efudex Cream.
Gently wash the area where you will apply Efudex Cream. Rinse well, pat dry with a towel, and wait 10 minutes before applying Efudex Cream.
Wash your hands immediately after applying Efudex Cream, unless they are part of the treated area.
Do not bandage or cover the treated area, unless directed to do so by your doctor.
Efudex Cream is for external use only. Do not get it in your eyes, nose, mouth, or genital area. If you get it in your eyes, rinse with a generous amount of cool water right away and contact your doctor.
If you miss a dose of Efudex Cream, use it as soon as possible. If it is almost time for your next dose, skip the missed dose. Go back to your regular dosing schedule. Do not use 2 doses at once.
Ask your health care provider any questions you may have about how to use Efudex Cream.

Important safety information:
Complete healing of the lesions may not occur for 1 to 2 months after you stop using Efudex Cream.
The treated areas may be unattractive during therapy and for several weeks after treatment has stopped.
Efudex Cream may cause you to become sunburned more easily. Avoid the sun, sunlamps, or tanning booths until you know how you react to Efudex Cream. Use a sunscreen or wear protective clothing if you must be outside for more than a short time.
Do not use other medicines or products on the treated area without first checking with your doctor.
Do not use Efudex Cream for future skin problems without first checking with your doctor.
Lab tests, including biopsies, may be performed while you use Efudex Cream. These tests may be used to monitor your condition or check for side effects. Be sure to keep all doctor and lab appointments.
Efudex Cream should be used with extreme caution in CHILDREN; safety and effectiveness in children have not been confirmed.
PREGNANCY and BREAST-FEEDING: Do not use Efudex Cream if you are pregnant. It may cause harm to the fetus. If you think you may be pregnant, contact your doctor right away. It is not known if this medicine is found in breast milk. Do not breast-feed while taking Efudex Cream.

https://www.drugs.com/mtm/efudex.html