I have pain in my neck. what should i do?

Heat: I am not sure of the source of your pain or it's chronicity. I see that you are already taking Ibuprofen which can be a good choice. You can also consider warm shower against neck or heating pad (ensure you don't get burned). Acupuncture can be very helpful for relief of neck pain. If pain is too severe or is not resolving, medical assessment would be prudent.