My 2 years old baby had a fever almost every 24 hours for four days and now i noticed a bad smell coming out of her left ear , she has no cough or flu?

Ear infection: Sounds like she has an ear infection. Her pediatrician or urgent care should take a look, quite possibly she needs antibiotics by mouth and if a smell probably ear drops as well.

Fever/ear: The most likely problem is that your baby had a viral infection and her left ear became infected and a perforation has occurred with drainage. She should see her doctor for an exam and treatment for her draining ear.

Middle ear infection: Toddlers like yours are prone to ear infections, because the structures forming the middle ear are not fully developed. I suspect your child's ear drum may have ruptured, causing some of the infection trapped in that space to leak into the ear canal and cause that smell. If that's true, I expect her fever to go down. You should see a doctor though as you need to confirm this and treat your child.

Otitis: It is possible she may have an ear infection either in the middle ear or external ear. The only way to be sure is to have the child checked by their physician

Ear: May have an ear infection from fluid coming from the middle ear, may be an outer ear infection or less likely wax. Keep the ear dry but you should see your pediatrician as soon as possible

Ear infection: Your child may have an ear infection may need antibiotics. You should take the child to your MD.