I have itchy bumps on my hand, they look like goose bumps, they flare up whenever I itch them, and they have been itchy for like a week. What is it?

Could be... ...An allergic reaction to something you came in contact with. Could be insect bites. Could be a lot of things. Since scratching makes it worse, try not to scratch it. Try an over-the-counter Hydrocortisone cream. If that doesn't work, see a dermatologist and get a specific diagnosis.