Verbatim response from Perplexity
Online dermatology is often enough for common, visible, non-urgent skin problems like acne, eczema, psoriasis, rashes, fungal infections, dandruff, cold sores, mild hair loss, and prescription refills or follow-ups for stable conditions.[1][3][5][9] It is usually not enough when you need a hands-on exam, dermatoscope exam, biopsy, procedure, or full-body skin cancer check, or if the problem is severe, worsening, painful, blistering, infected, or involves systemic symptoms like fever or feeling ill.[1][2][3][4][5]
A practical rule: if the problem is easy to see clearly on camera and you mainly need diagnosis + treatment advice, online care may be sufficient; if diagnosis depends on touch, magnification, testing, or a full skin exam, in-person is better.[1][2][3][9]
Use online dermatology when you have:
- Acne, rosacea, eczema, psoriasis, hives, dandruff, or a new/mild rash.[1][3][5][9]
- Athlete’s foot, ringworm, or other straightforward fungal infections.[1][5]
- Mild, non-scarring hair loss or scalp concerns that are easy to visualize.[1][5][9]
- A need for medication refills, a quick follow-up, or a cosmetic/skincare question.[1][2][3]
- A stable condition you’ve already been diagnosed with in person.[3]
Choose an in-person dermatologist if you have:
- A changing mole, dark spot, or any suspicious lesion that may need dermatoscope exam or biopsy.[1][3][4][9]
- A need for a full-body skin exam for skin cancer screening.[1][2][5]
- Severe or complex disease, including widespread/blistering rashes, significant pain, infected wounds, large ulcers, or autoimmune skin disease.[1][2][5]
- Hair loss with scarring, heavy scaling, or pus/drainage.[1]
- A problem in a sensitive area that is hard to assess on camera, or a concern that cannot be examined visually well.[2][3]
One useful nuance is timing: teledermatology can be faster, with shorter wait times than in-person visits in several systems, so it is often a good first step for non-urgent visible problems.[3][7][8] Some virtual services can then direct you to in-person care if they see warning signs or need testing.[4][8][9]
If you want, I can turn this into a “online vs in-person” decision checklist you can use for a specific skin issue.