Before you start
- Photos of every affected area, taken today (instructions below).
- A few lines on when it started, how it has changed, and what makes it better or worse.
- Every medicine, supplement and skin product you use, with doses.
- Allergies, other conditions, and whether you are pregnant, breastfeeding or planning a pregnancy.
- Your pharmacy's name and address, and your insurance card if the service bills insurance.
- Older photos, if you have them, showing how it looked before.
How to take good photos
The AAD recommends a camera of at least 800×600 pixels for store-and-forward care, which any recent phone camera exceeds; what usually fails is light and focus, not resolution.[2] Services agree that clear, well-lit images make assessments more accurate.[3]
- Use daylight. Stand facing a window, out of direct sun. Turn off the flash, which flattens redness and texture.
- Take three distances. One wide enough to show where on the body it is, one at arm's length, and one close-up that is still in focus.
- Add a scale. For a spot or mole, put a ruler or coin beside it in the close-up.
- Keep it plain. No makeup, filters, beauty modes or editing. Use the rear camera if someone can help: it is usually sharper.
- Check before sending. Zoom in: if you can't see the edges of a bump or the texture of a patch, take it again.
- Repeat the same way next time. Same place, light and angles, so changes are real changes.
For hard-to-see places like your back or scalp, ask someone to help, or use a mirror as the AAD suggests for skin self-exams.[6]
How to describe symptoms
Answer these in a few short lines. Clinicians read hundreds of histories; specifics help.
| Cover | Instead of | Write |
|---|---|---|
| Timing | “A while” | “Started 3 weeks ago on my left forearm” |
| Change | “It's getting worse” | “Spread to both arms in the last week; spots now merge” |
| Feel | “It bothers me” | “Itchy, worse at night; not painful” |
| Triggers | Nothing | “Started after switching laundry detergent” |
| Tried | “Some creams” | “OTC 1% hydrocortisone twice a day for 5 days: slightly better” |
| Other symptoms | Leaving it out | “No fever, no joint pain, no new medicines” |
For a mole or spot, describe it against the ABCDEs: asymmetry, border, color, diameter and evolving.[7] If any of them apply, book an in-person exam; see moles and changing spots.
Listing medications
The AAD's standards ask that platforms collect an adequate history before allowing a prescription.[2] That history is only as good as what you list:
- Prescription medicines, with dose, including birth control and anything started in the last two months (new medicines can cause rashes).
- Over-the-counter medicines and supplements, including vitamin A, biotin and herbal products.
- Everything on your skin: cleansers, acids, retinol, sunscreen, and anything prescribed before.
- Allergies and past reactions to medicines or skin products.
- Pregnancy, breastfeeding or plans to conceive: several skin medicines aren't used in pregnancy, and isotretinoin has its own program, iPLEDGE, with pregnancy testing requirements.[8]
If it's a video visit
- Send photos ahead if the practice allows it: still photos show more detail than video.
- Join from a bright, private room, with the affected area easy to show.
- Test your camera and connection beforehand; have a phone ready as backup.
- Write down your questions, and the answers.
The AAD notes that a dermatologist may ask you to come in if something, such as a suspicious mole, needs to be tested or removed.[1]
Reading your care plan
A good plan answers each of these. If yours doesn't, ask before you start treatment.
What to look for
- Diagnosis
- What they think it is, and how sure they are. “Likely” or a short list is normal.
- Treatment
- Each medicine, how much, where, how often, and for how long.
- Expect
- When you should see improvement, and which side effects (dryness, peeling) are normal.
- Stop if
- Which reactions mean stopping and getting in touch.
- Follow-up
- When to send new photos or book the next visit, and how.
- In person
- What would mean seeing someone face to face, and how to arrange it.
- Clinician
- Who made the plan, with their credentials.
Not sure which service to start with? See how to compare services.
Questions
How many photos should I send to an online dermatologist?
Should I wear makeup in my photos?
No. Remove makeup, self-tanner and shiny skincare, and turn off filters and beauty modes: they hide what the clinician needs to see.
Sources
Every numbered claim on this page points here. Providers' own pages were read in November 2026; prices and terms change, so check them again before you pay.
- What is telemedicine? · American Academy of Dermatology
- AAD Teledermatology Standards · American Academy of Dermatology
- Nolla frequently asked questions · Nolla
- Teladoc Health online dermatology · Teladoc Health
- First Derm online dermatology · First Derm
- How to perform a skin self-exam · American Academy of Dermatology
- What to look for: ABCDEs of melanoma · American Academy of Dermatology
- iPLEDGE REMS program · iPLEDGE