Radiologist Questions Radiologist

How long after radiation therapy do you start to feel better?

I had radiotherapy 3 weeks ago. I still feel very sick and tired. How long after radiation therapy do you start to feel better?

3 Answers

Depending on the location. Cancer in the head and neck or pelvis may take longer time to recover
You're going to need a few weeks. In 1 month, you should feel pretty good. Cancer can keep responding to radiation therapy for much longer, so effects are still taking place at 8 and even 12 weeks out. 

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It depends on how much radiation you received and to what parts of the body it was administered. Generally you should be over the acute effects in another two to three weeks. Make sure you drink enough liquids and eat a healthy diet.