You can add a symptom or side effect by clicking on "My symptoms" on the left side of My Health. Once there, you may be asked to update your symptoms if you haven't done that in awhile. Once your symptoms are up to date, you can add a new symptom or side effect by clicking on the green "Add symptom" button. This takes you to a search page where you can search through a list of symptoms and side effects. If you can’t find the symptom or side effect you are looking for, you can add it as a new symptom or side effect by following the drop down prompt in the search field.
You can delete a symptom or side effect by clicking on "My Symptoms" in the menu bar on the left side of My Health. For symptoms, find the name of the symptom you wish to edit or delete and click on it.
This will take you to a symptom history page where you can delete any symptom history information you had for that symptom. This will remove the symptom from your profile. For side effects, scroll down to the treatment you’ve attributed the side effect to and click on it. This is your treatment history page. Scroll down to the treatment history log and delete any entries made on the side effect you wish to delete. This will remove the side effect from your profile.