Antibiotics are ineffective in treating Acne . Use of Antibiotics for long periods causes chronic dizziness and vertigo in at least 75 percent of those taking them.I had such severe dizziness that it interfered with my ability to work and caused me to have huge medical bills for tests to find out why I was so dizzy. Dermatologists prescribe antiboitics because they want you to return so they can make money on another office visit.