Would it be bad to use fluocinonide cream on pimples?

VERY bad. This will relieve inflammation but also invite the bacteria that cause the pimples to spread deeper into the tissues. You are asking for an intractable deep-tissue bacterial infection. Please forgive my frankness. In our dysfunctional health care system, it's hard for people to get acne treated, though treatment is simple -- i start youngsters on topical clindamycin.