Severe long term side effects from head and neck radiation

Posted by mysister @mysister, Dec 13, 2025

Hi. I am new to this group and desperately trying to find help for my sister. She received radiation for tongue cancer about 9-10 years ago. In the last 4 years or so she has developed debilitating side effects, so bad that she has no quality of life. I’m trying to find help for her. Nothing the doctors or pain clinics have done has helped and she is in very bad shape. She lives in Germany so I can’t be there with her and am trying to research ways to help. Can anyone direct me or give me some advice?

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Profile picture for linda90 @linda90

@omaest I’m struggling with my weight gain as well. My last radiation was in October 2025 and up until today I only added 5kg. I just want to ask if I will ever get my usual weight back

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Profile picture for omaest @omaest

Our circumstances are different because my cancer was Stage 4 tonsil cancer. A tumor in the right tonsil. The treatment was huge doses of chemotherapy and 37 days of radiation. I did not have any surgery. The damage I am dealing with was caused by the radiation because it stays with you forever and continues to be active. My cancer was in 2003, more than 20 years ago but the side effects of the radiation have been numerous. I have lost all but three of my molars and on the right side a lot of jaw bone tissue was damaged, my thyroid and saliva glands were damaged and I have nerve damage in my neck and down my right arm. Difficulty eating started with the loss of my molars and lack of saliva so I couldn't chew foods enough to be able to swallow them. It wasn't long until the only thing I could eat was very soft foods and energy drinks. Then aspiration increased dramatically over the past 5 years. My immune system is weak and I must be very careful not to develop the flu or any other respiratory diseases/allergies, etc. Before getting the tube I had been hospitalized 3 times in 2 years for aspiration pneumonia. Dry mouth is also a severe problem and my teeth will probably be damaged because of that. My day to day life is pretty good but I can no longer do a lot of the activities I used to. Cancer is a mean disease but sometimes I think the treatment is mean too! But without the treatment I would not be here today. Wishing you well - Take care.

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@omaest Hola @omaest , es cierto lo mío es dé lengua pero parece ser que hay coincidencia en cuanto al tratamiento en mi caso también sufrí unas dosis altísimas por recidiva al poco tiempo dé comenzar el tratamiento me aplicaban dos sesiones al día una por la mañana y otra por la tardé con un intervalo dé ocho horas entre ambas y además me dieron tres sesiones dé quimioterapia o sea para un elefante y la verdad que estuve tres meses bastante mal tomando alimentos líquidos hasta que con la mejoría posterior a los tres meses ya empecé con purés dé todo tipo dé alimentos, es cierto qué las secuelas qué deja la radio y la quimio son tremendas sea el tipo que sea el cáncer en la boca.
Pero tenemos que ser lo suficientemente fuertes para poder seguir en la brecha, me dijo un conocido en la consulta del oncólogo que él cáncer es una enfermedad asesina pero que él tratamiento también. Así qué amigo no nos queda más remedio que aguantar y apechar con lo qué nos ha tocado.
Qué té valla todo bien.

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Profile picture for omaest @omaest

Our circumstances are different because my cancer was Stage 4 tonsil cancer. A tumor in the right tonsil. The treatment was huge doses of chemotherapy and 37 days of radiation. I did not have any surgery. The damage I am dealing with was caused by the radiation because it stays with you forever and continues to be active. My cancer was in 2003, more than 20 years ago but the side effects of the radiation have been numerous. I have lost all but three of my molars and on the right side a lot of jaw bone tissue was damaged, my thyroid and saliva glands were damaged and I have nerve damage in my neck and down my right arm. Difficulty eating started with the loss of my molars and lack of saliva so I couldn't chew foods enough to be able to swallow them. It wasn't long until the only thing I could eat was very soft foods and energy drinks. Then aspiration increased dramatically over the past 5 years. My immune system is weak and I must be very careful not to develop the flu or any other respiratory diseases/allergies, etc. Before getting the tube I had been hospitalized 3 times in 2 years for aspiration pneumonia. Dry mouth is also a severe problem and my teeth will probably be damaged because of that. My day to day life is pretty good but I can no longer do a lot of the activities I used to. Cancer is a mean disease but sometimes I think the treatment is mean too! But without the treatment I would not be here today. Wishing you well - Take care.

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@omaest Gracias lo mismo té deseo.
No nos queda más remedio qué seguir viviendo con está losa pesada. Cuidate

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Profile picture for kmlnj @kmlnj

Types of Radiation & Retention:
External Beam Radiation Therapy: The machine sends beams through your body; once it's off, no radiation remains in you.
Diagnostic Imaging (X-rays, CTs, MRIs): No radiation stays in your body at all after the scan.
Nuclear Medicine Imaging: A tracer is used, but it's eliminated by the body within days to weeks, depending on the isotope.
Internal Radiation Therapy (Brachytherapy):
Temporary Implants: Sources are placed for minutes to days and removed, making you radiation-free afterward.
Permanent Implants (e.g., Seeds): These stay in the body forever but become non-radioactive after several weeks or months as their radiation "burns out," with little to no risk to others.
Systemic Radiation (Radioactive Drugs): Drugs travel through the body and are excreted, though they can make you radioactive for a short period.

Responding to a comment above that radiation stays in your body.

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@kmlnj I should have said the longterm side effects of the radiation are on going. As my doctor said
"radiation is the gift rhat keeps on giving."

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Profile picture for kmlnj @kmlnj

@roblem
Thanks. I had 35 radiation treatments. I had to Google the comment.
Glad to know I am not radiating radiation. 🙂

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@kmlnj, Yes you'll get your weight back and maybe then some. My radiation treatments were way back in 2003, it took awhile but within the first 5 years of recovery I gradually gained all the weight lost and then some. It wasn't until 2022 that I lost almost 30 lbs. in a very short time. Overtime the long term effects had caused loss of teeth, difficulty in swallowing because of increasing size of the radiation scar tissue (similar to a burn) and other factors like aspirating. I was not getting proper nutrition with the things that I could eat and swallow. So, now I am on a feeding tube which has given me better nutrition and increased energy. I am maintaining the weight but not gaining. Take care!

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Profile picture for linda90 @linda90

@omaest I’m struggling with my weight gain as well. My last radiation was in October 2025 and up until today I only added 5kg. I just want to ask if I will ever get my usual weight back

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@linda90 hola @linda90 . En tú caso no sé qué tipo dé cáncer has sufrido ( si es que lo has sufrido) pero mí experiencia fue qué durante él tratamiento y posteriormente durante unos meses bajé de peso debido a que no podía comer en condiciones por los efectos secundarios de la radioterapia y alternativamente con la quimioterapia debido a un cáncer dé lengua, pero sí en tu caso puedes comer normalmente seguro qué después del tratamiento irás cogiendo peso poco a poco así que té recomiendo tengas paciencia.
Yo volví ha mí peso habitual pasado unos meses ( 6 u 8 ) así qué paciencia.
Saludos y que todo té vaya muy bien

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Profile picture for linda90 @linda90

@omaest I’m struggling with my weight gain as well. My last radiation was in October 2025 and up until today I only added 5kg. I just want to ask if I will ever get my usual weight back

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@linda90 Hi, one thing that helped me was eating a lot of cream. It is easy to swallow, it can be a topper for many foods, delicious and very fattening! If you have a problem with mucus, it might create more...but it seems everything in life is a tradeoff...unfortunately. Best wishes to you in 2026 and always.

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Profile picture for linda90 @linda90

@omaest I’m struggling with my weight gain as well. My last radiation was in October 2025 and up until today I only added 5kg. I just want to ask if I will ever get my usual weight back

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@linda90 , I am 13 years post radiation/chemo with metastatic SCC. Last metastasis was in 2020. I try daily to gain weight but no success. I am 15 lbs lighter than before the diagnosis. Keep exercising to maintain your strength and consume as much protein as you can for healing. I used a lot of yogurt, cottage cheese and half + half in smoothies to get more calories and protein. Just do your best and if you can maintain your weight that may be the best that you can do.

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Profile picture for Sue, Volunteer Mentor @sepdvm

@linda90 , I am 13 years post radiation/chemo with metastatic SCC. Last metastasis was in 2020. I try daily to gain weight but no success. I am 15 lbs lighter than before the diagnosis. Keep exercising to maintain your strength and consume as much protein as you can for healing. I used a lot of yogurt, cottage cheese and half + half in smoothies to get more calories and protein. Just do your best and if you can maintain your weight that may be the best that you can do.

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@sepdvm metastatic is another thing that can pop up again? But why is the weight not going up?

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Profile picture for linda90 @linda90

@sepdvm metastatic is another thing that can pop up again? But why is the weight not going up?

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Yes, metastatic SCC is a more serious issue, though a newer Immunotherapy drug has cleared my most recent met. I wish I could answer why no weight gain. Perhaps all the stress on our bodies from cancer and treatments plus age related muscle loss makes weight gain difficult. I have resigned myself to just maintaining where I am and being satisfied with that.

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