A speech-language pathologist (SLP) has the qualifications and education necessary to help those with phonological deficits. This is because many people who seek speech therapy, not only those with dyslexia, have lacking phonological skills. As such, imparting these skills is vital for an effective SLP.
People often ignore SLPs when treating dyslexia since the phonological deficit does not typically impact speech. However, teaching students exercises that will improve their overall phonological skills will have a direct impact on dyslexia. Furthermore, many people with dyslexia have language learning problems, which a speech therapist can also help resolve.