My wife (62 years old) suffered from a staph infection last year that lasted for ten months. Her doctor kept trying various antibiotics including nasal spray. The infection finally went away but she continues to suffer from chronic sinusitis, drainage causing her to throw up every other day or so, and sores on her mouth and throat. We are losing faith in our doctor and ENT specialist. Is it time to get a second opinion, and if so, what type of specialist should we look for/