Yes you can take ibuprofen every day for arthritis if you need too.
Ibuprofen is a pretty safe over the counter pain medicine that you can take for your arthritis, back pain, headaches and any other pain.
You can safely take up to 3 ibuprofen pills per day but anymore than 3 Ibuprofen pills per day could be harmful unless your doctor says it's okay.
But you certainly are able to take ibuprofen or any other pain medicine everyday just like you can take other medicines everyday including prescription pain medicines.
If the ibuprofen you take is not enough then talk with your doctor about upping the dosage or see if they can prescribe you some more powerful prescription pain medicine for your arthritis.