What type of drug relieves pain without causing loss of consciousness?

That depends on how sensitive you are. Typically, an NSAID is a good choice: aspirin, acetaminophen, ibuprofen and naproxen are pretty standard medications. If you've never taken them before, then you should take the minimum dosage and see how it affects you. If you are sensitive to medications or have Allergies, you should probably consult your doctor.