The process of healing varies from person to person depending on how ill you are, or on your levels of vitality. In the days/weeks after taking the homeopathic remedy you may find that you feel better in yourself - you experience an increase in energy and/or your complaints improve gradually or may even clear up completely.
With an acute or recent illness your improvement may be quite swift. Or it can be a more gradual process, especially if you have been suffering from a long term, or chronic complex illness.
Some people experience a slight worsening, or aggravation after their treatment (healing crisis). This usually occurs within the first day or two of starting a remedy and is a good sign. Aggravations mostly do not last long (part of a day or two), are manageable and are accompanied by an increased sense of well being.
You may experience a "return of old symptoms", in other words symptoms that you experienced in the past may resurface, and these too, are a good sign. They indicate that your body is clearing out an old disease pattern and are generally short-lived. This is always a good opportunity to ask yourself whether your symptoms are familiar, whether they remind you of something you have experienced in the past.
Health problems are symptoms of imbalance - a warning sign from your own body that it is not functioning as well as it could. The earlier you address a health concern, the easier it is to resolve.