If you say that something is under the microscope, you mean that it is being studied very closely, usually because it is believed that something is wrong with it. The media put their every decision under the microscope.

What does it mean to be put under the microscope?

Definition of under a/the microscope

: in a state of being watched very closely Celebrities can find it difficult (to be) living under the microscope. The business has recently been put under the microscope by federal investigators.

What does get under one's skin mean?

informal. 1 : to irritate or upset someone His constant boasting was beginning to get under my skin. 2 : to affect someone positively even though he or she does not want or expect to be affected that way : grow to like something I used to hate the city, but after a while it kind of got under my skin.