Radiation can also affect the cells in your bone marrow, which produce your blood cells, including the white blood cells. But generally, radiotherapy only affects the area being treated and is less likely to affect your white blood cells than chemotherapy.
Infection during or after treatment | Coping physically fever | Cancer Research UK
Please explain the use of present progressive passive (being treated).
What is the grammatical function of "being" in the above apart from forming the present progressive passive?
" It is a reduced clause. The passive is used because there is no need to state who is doing the treating. The focus is on the area.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
It means "the area that is being treated." It is a reduced clause. The passive is used because there is no need to state who is doing the treating. The focus is on the area.
Move "only."
"...radiotherapy affects only the area..."
You don't mean "only affects;" you mean "only the area."