Hand-foot-and-mouth disease. Multiple, superficial erosions and small, vesicular lesions surrounded by an erythematous halo on the lower labial mucosa; the gingiva is normal. In primary herpetic gingivostomatitis, which presents with similar oral vesicular lesions, a painful gingivitis usually occurs as well.
Iododerma and bromoderma. Iodides and bromides are drugs that can cause severe adverse cutaneous reactions, and of these, the worst are acneiform, furuncular, carbuncular, chancriform, pyodermatous, or granulomatous. Iodides and bromides are widely distributed, not only in foods and in the environment but also in proprietary and formally prescribed medicaments. These figures are of still relatively minor consequences of adverse reactions from the two halides, of which bromides are usually worse than iodides. Lesions like those of acne or folliculitis caused by an iodide are shown.
Shingles (herpes zoster) results from a reactivation of the virus that also causes chickenpox. With shingles, the first thing you may notice is a tingling sensation or pain on one side of your body or face. Painful skin blisters then erupt on only one side of your face or body along the distribution of nerves on the skin.