What Causes Persistent Pain In Right Hip?

Hello. I am writing because I have had persistent pain in my right hip for over two years and I cannot stretch my legs by rotating my right hip outward without experiencing pain. When I take over the counter anti-inflammatory medications such as Ibuprofen my pain tends to subside but does not go away completely. My pain is currently at a 3. When I first began to experience the pain it was a 9 consistently. I am wondering how long I should take the Ibuprofen before I discontinue it if my pain does not go away entirely and should I consult a surgeon if my gait is not limited by the pain.