Treatment of eczema is very simple: whenever you develop one treat that, when it heals stop, restart when it again reappear. Yes eczema can be recurrent, sometime for life time and even bothersome to most. But if localized it is not a very bad condition to have with a simple treatments. We dermatologist usually want to treat the existing disease as there is no way to predict and prevent it recurrence. However in most of the patient it subsides of its own in next few months to years. You can take some measures to reduce its frequency like regular moisturiser application over the affected area even after the subsidence definately helps
For the current situation I would suggest topical steroids like topisal oint once daily but it should be supervised under some dermatologist.
Dr Prakash Khute