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How soon do the side effects of Efudex show up after the first application?

Responses (1)

suzanne66 25 Jan 2010

Usually sometime during the first week of application mild inflammation occurs.

The sometimes unsightly effects of fluorouracil (Efudex) occurs in four phases:

Early inflammatory phase: During the first week of application, mild inflammation occurs.
Inflammatory phase: During the following weeks, redness, and swelling occur with some crusting and burning.
Tumor disintegration phase: Lesions resolve as the skin exfoliates.
Healing phase: Over 1 to 2 weeks, new skin grows into the treatment area.

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