Environmental Injury

• Sun Exposure
• Actinic Purpura
• Freckles
• Solar Lentigo
• Sun Damaged Skin
• Sun Exposure
• Sunburn

• Cold Exposure
• Chilblains
• Skin Reaction to Cold

• Heat Exposure
• Erythema ab igne
• Erythralgia
• Skin Reactions to Heat

• Pharmacology related topics
• Jump to Pharmacology Chapter
• Drug-induced Photosensitivity
• Sunscreen