How Long Does One Keep Using Efudex 40 On Spots/sores

I have been using Efudex on spots on chest, arms and legs for 2 months now. Most spots have blistered and turned into weeping sores, some have crusted up and turned into scabs. They are all extremely itchy, the itching drives me crazy when I’ve got these sores arms, chest, legs. Around Some sores that have scabbed over further red spots/lumps have come up surrounding the original sore, like it is spreading.
My doctor told me to keep using Efudex until the sores have completely healed and disappeared, is this correct? Putting Efudex on the crusty sores usually stings like mad

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Hello Glyn,

According to the medlineplus government page the instructions are as follows.

[1] MedLinePlus Gov

"If you are using fluorouracil to treat actinic or solar keratoses, you should continue using it until the lesions start to peel off. This usually takes about 2 to 4 weeks. However, the lesions may not be completely healed until 1 or 2 months after you stop using fluorouracil.

If you are using fluorouracil to treat basal cell carcinoma, you should continue using it until the lesions are gone. This usually takes at least 3 to 6 weeks, but may take as long as 10 to 12 weeks."

Your doctor would know your situation better than this website or I would and thus has a better idea of how long you should be applying the cream to your legions. Since he told you to continue applying it until your legions are gone I believe it would be safe to assume you fall within the second parameters. The instructions given do say that it could last between 10 and 12 weeks depending on the severity and since you are only two months in you may have an addition month to go.

Best of luck and I hope that this information helps.

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