I agree..........if she's just limping, let her body protect itself. However, I can't stand seeing anyone - man or beast, suffer needlessly. But if she can sleep, eat, go potty and be soothed by having you near - that is what she needs. If she's crying, panting, can't get comfortable, medication is in order. If you DO give aspirin, make sure there is some food given as well.
Good luck and hoping she feels much better in a day or two.