resting at home; home rest
Medical or health-related term for staying home to rest, often under doctor's orders. Used in contexts like pregnancy, illness, or recovery.
The doctor ordered me to rest at home.
During pregnancy, home rest may become necessary.
安静 means 'rest' or 'quiet' in a medical sense; 自宅安静 specifically adds 'at home'.
自宅療養 is 'home medical treatment' or 'recuperation at home', broader than just resting.
Compound of 自宅 (one's home) and 安静 (rest, quiet). The term is a modern medical expression.