From the client's photos list, choose a photo. Then tap the ellipsis at the top right of the screen. In the dropdown, tap Edit. The drawing and annotations tools are at the bottom of the edit screen. The first tool is the pen. Tap on the pen to draw on the photo. Tap on a color to draw with that color. The next tool is the zoom tool so you can make the image larger for greater precision when drawing. Next is the injection tool. Tap it then tap the photo where you plan to make the injection. A list of procedures will display, which you can customize on the RxPhoto website. Choose a procedure, then choose the number of units for that injection point. Each time you tap the photo, you'll get these choices when you use the injection tool. Next is the text tool. Enter the text in the popup, then tap Write. This will place the text in the center of the photo, which you can then reposition by dragging. Next is the dashed line tool. Choose a color then draw a line to make the dashes. With the last tool on the right, you can draw ovals or rectangles to highlight an area on the photo. Across the top, the back button will take you back to the client's photos list, but it will not save your edits. The next button on the top is Undo. Tap it to undo the most recent edit. On the right side is the share button. A warning will display since you're no longer secure, since you'll be sending the photo through the standard export functions as provided by the iOS. The Save button will upload your edited photo to the RxPhoto secure cloud. You can use the annotated photos to plan or track treatments.