A complete history should be obtained, with special attention being paid to the following points:
- Evolution of the lesionsite of onset, manner in which eruption progressed or spread, duration, periods of resolution or improvement in chronic eruptions
- Symptoms associated with the eruptionitching, burning, pain, numbness; what has relieved symptoms; time of day when symptoms are most severe
- Current or recent medicationsboth prescription and over-the-counter
- Associated systemic symptoms (e.g., malaise, fatigue, arthralgias)
- Ongoing or previous illnesses
- History of allergies
- Presence of photosensitivity
- Review of systems
- Family history
- Social, sexual, or travel history