Is my ear piercing ok?

Use your cleaning solution on it right away be very thorough with it. Make sure you leave it alone. Sometimes piercings become inflamed when you aggravate them. Which would lead it to heat up. If you keep it clean and leave it alone (stop changing earrings!) it may get back to normal. If in 2-3 days it is still warm and you notice a pussy substance coming from it (not clear) then you should go get it looked at by a body piercer (a real one, not a place that uses a piercing gun) If it is becomes very hot, oozy, and painful you should see a doctor.