A few of the medicines will be topical to apply on others and skin may be oral. A few of the common OTC topical medicines are: – Benzoyl peroxide This can help to destroy pimples and reduces oil production also. – Resorcinol This helps in breaking down blackheads and whiteheads. – Salicylic acid This helps in wearing down whiteheads and blackheads. It also decreases the shedding of cells lining the hair roots. -Sulfur – This can help in wearing down whiteheads and blackheads. The prescription topical medications include: -Antibiotics – They help slow or stop the development of bacteria and reduce inflammation. -Supplement A derivatives They help in unplugging the prevailing comedones, thus enabling other topical medications to enter the follicles.The brain scans run from $300 to $700, Malhotra added. MRI brain scans usually do not make use of radiation and are not considered to have any instant side effects. Ultimately, he said, successful advancement of a test may lead to less period in a healthcare facility for patients ‘and hopefully increased services and attention to those patients who may not be the best responders to treatment.’ Patients and families who want to understand how rapidly a medication will continue to work would welcome such a test, said Keith Nuechterlein, psychiatry professor at the University of California, Los Angeles, Semel Institute for Neuroscience and Human Behavior. ‘Antipsychotic medications rarely function quickly, requiring weeks or months to resolve psychotic symptoms sometimes,’ Nuechterlein said.