
Dr. Allison Cashman, MD
Physician
Dermatology
Specialty
Dermatologic Surgery
Medical Expertise of Dr. Allison Cashman, MD
Dr. Cashman specializes in medical and surgical dermatology with particular expertise in the treatment of Contact Dermatitis, Autoimmune disorders, Skin problems in Transplant patients, Psoriasis, and Skin cancer.
About Dr. Allison Cashman, MD
Dr. Allison Cashman, MD is a board-certified dermatologist providing care to patients in the Columbia, SC area at the Columbia Skin Clinic since 2006.
Dr. Cashman is the recipinet of multiple awards and designations, including being appointed " Best Dermatologist " by Lake Murray Life Magazine. (2012 & 2013)
Dr. Cashman is a member of multiple national and local medical professional organizations, including the South Carolina Medical Association, South Carolina Dermatological Society, and Columbia Medical Society.
Patient Education Resources
Does the acne on my back and chest require different treatment from the acne on my face?
Truncal acne, which refers to acne that occurs on the trunk of the body (such as the chest and back), may require a slightly different treatment approach than facial acne. This is because the skin on ...
Truncal acne, which refers to acne that occurs on the trunk of the body (such as the chest and back), may require a slightly different treatment approach than facial acne. This is because the skin on ...
How can Botox® improve my appearance?
Botox® (botulinum toxin type A) is a medication that is primarily used to temporarily paralyze specific muscles in the face and body.It is most often used to improve the appearance of wrinkles and...
Botox® (botulinum toxin type A) is a medication that is primarily used to temporarily paralyze specific muscles in the face and body.It is most often used to improve the appearance of wrinkles and...
What are the best sunscreens?
The best sunscreens are those that provide broad-spectrum protection, which means they protect against both ultraviolet A (UVA) and ultraviolet B (UVB) rays. They should also have an SPF (sun protecti...
The best sunscreens are those that provide broad-spectrum protection, which means they protect against both ultraviolet A (UVA) and ultraviolet B (UVB) rays. They should also have an SPF (sun protecti...
What is the treatment for nail fungus?
Treatment for nail fungus (onychomycosis) can be challenging, as the fungus can be difficult to eliminate and may recur. Treatment options include:Topical antifungal medication: Over-the-counter antif...
Treatment for nail fungus (onychomycosis) can be challenging, as the fungus can be difficult to eliminate and may recur. Treatment options include:Topical antifungal medication: Over-the-counter antif...
What medications are used to treat acne?
There are several medications that can be used to treat acne, including:Topical retinoids (e.g. tretinoin, adapalene)Topical antibiotics (e.g. clindamycin, erythromycin)Topical benzoyl peroxideOral an...
There are several medications that can be used to treat acne, including:Topical retinoids (e.g. tretinoin, adapalene)Topical antibiotics (e.g. clindamycin, erythromycin)Topical benzoyl peroxideOral an...
Education & Training
Dr. Cashman graduated from the United States Naval Academy and served in the United States Marine Corps (USMC) for five years before receiving her Bachelor of Science in Biology from the University of South Carolina (USC). She then received her medical degree from the University of South Carolina School of Medicine. She then completed her dermatology residency training at the University of Minnesota where she served as the chief resident.
- Medical School: University of South Carolina School of Medicine
- Medical Internship - Transitional Year: Hennipen County Medical Center, Minneapolis, MN
- Dermatology Residency: University of Minnesota
Professional Affiliations
Columbia Skin Clinic

As the largest, most experienced dermatology group in the Midlands, Columbia Skin Clinic is known for its expertise in diagnosing and treating a wide array of skin conditions and its dedication to the best patient care experience.
Our comprehensive dermatology practice offers the latest advancements in skin care treatments. Our in-house histology lab, which is run by our two dermatopathologists, offers the convenience of a one-stop treatment center with quicker test results. Trained in every facet of skin cancer from prevention to treatment, our board-certified physicians utilize everything from non-invasive procedures to cutting-edge Mohs surgery.
At Columbia Skin Clinic, we offer medical dermatology, surgical dermatology, cosmetic dermatology and aesthetic services to design a treatment or regimen plan that works for your individual needs.
Our comprehensive dermatology practice offers the latest advancements in skin care treatments. Our in-house histology lab, which is run by our two dermatopathologists, offers the convenience of a one-stop treatment center with quicker test results. Trained in every facet of skin cancer from prevention to treatment, our board-certified physicians utilize everything from non-invasive procedures to cutting-edge Mohs surgery.
At Columbia Skin Clinic, we offer medical dermatology, surgical dermatology, cosmetic dermatology and aesthetic services to design a treatment or regimen plan that works for your individual needs.