Dogs leg and skin

Question
My dog is usually not agressive but one of her back legs she has been shaking recently and if i put abit of pressure on her thigh in a certain spot she tries to bite so im guessing it hurts but she has no trouble walking also ive noticed on a small part of her ear the skin is peeling and small sections of hair is coming of with it do you know whats wrong?..

Answer
With out seeing a dog and feeling it no one can tell what is wrong. I suggest you make an appointment with your vet to have her leg and ear looked at. They are unrelated is my guess, however.

Dogs will shake or vibrate a limb or area that hurts, so yes, she is in pain. Just by that alone you need to get her in to see the vet.