Skin is the one organ you can photograph clearly, which makes dermatology one of the best-suited specialties for online care. Teledermatology lets a doctor assess many common skin problems from good photos and a short history, often resolving the issue without a clinic visit. This article explains how it works, what it handles well, its limits, and the warning signs that always need an in-person look.
How teledermatology works
- You describe the problem — when it started, how it has changed, any symptoms like itch or pain.
- You upload clear photos: a close-up in focus, plus a wider shot for context, taken in good natural light.
- A doctor reviews the images and history, asks any follow-up questions, and gives an assessment.
- Where appropriate, the doctor prescribes treatment or recommends an in-person review or referral.
Good photos make the difference
Use bright, natural light, hold the camera steady, and take both a close-up and a wider shot. Include something for scale if size matters. Clear images let a doctor give a far more confident assessment.
What suits online care
- Acne and rosacea.
- Eczema, dermatitis, and dry-skin conditions.
- Common rashes and hives.
- Fungal infections such as athlete's foot and ringworm.
- Cold sores, warts, and minor skin infections.
- Reviewing whether a mole or lesion needs in-person assessment.
The limits of a photo
A photo cannot capture everything. Texture, depth, and subtle colour changes can be hard to judge on camera, and some conditions need a doctor to feel a lesion, use a dermatoscope, or take a sample (biopsy). When a skin problem is unclear, changing, or potentially serious, a responsible doctor will arrange an in-person review rather than guess — that is part of safe care.
Moles and skin cancer — when to act
Get a mole or spot checked in person promptly if it is changing in size, shape, or colour; has an irregular or blurred border; is more than one colour; is larger than a pencil eraser; or is itching, bleeding, or crusting. For a rapidly spreading rash with fever, severe pain, or signs of serious infection, seek urgent care or call your local emergency number.
Treatment and follow-up
For many conditions a doctor can prescribe creams, oral medication, or other treatment and explain how to use it. Skin conditions often evolve, so follow-up matters — sending updated photos after a week or two lets the doctor see whether treatment is working and adjust it. Keeping everything in one app means your history and images stay together.
Next steps
If you have a skin concern that is not an emergency, take a couple of clear photos and see a doctor online for an assessment. This article is general information, not a diagnosis; for any spot or mole with the warning signs above, arrange an in-person review without delay.