Violet Bugs on Phal

[Aya]

Hi,

I recently noticed some violet colored spots on my orchid's flowers. With a closer look, I realized they are very tiny bugs with antennas. I'm also noticing that there are little white cottony-looking clusters on the stem and leaves, which I'm guessing are some sort of nests?

*Please see images below*

Does anybody know what I should do to rid the orchid of these pests? What should I purchase, and how can I prevent them from returning? (Also, what danger do these present to the plant?)

Thanks in advance!!