Hello,
Some causes of hip pain are:
Arthritis, 
osteoarthritis and 
rheumatoid arthritis, bursitis, tendinitis, hip labral tear, muscle or tendon strain, 
osteonecrosis.
 You may relieve hip pain by holding ice to the area for about 15 minutes a few times a day. Try to rest the affected joint as much as possible until you feel better. You may also try heating the area. 
A warm bath or shower can help ready your muscle for stretching exercises that can lessen pain. 
If you have arthritis, exercising the hip joint with low-impact exercises, stretching, and resistance training can reduce pain and improve joint mobility. Swimming is a good non-impact exercise for arthritis. 
Physical therapy can also help increase your range of motion. 
Paracetamol may be used to reduce pain. If these steps don't work, have a consult with your doctor to make a decision about treatment!
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr Suzana Zharri, General & Family Physician