Both WebMD and MedicineNet offer pictures of rosacea on their websites, as of 2015. Rosacea is a skin disease that results in pimples and redness on the forehead, chin, cheeks and nose, according to WebMD. Flare-ups of the disease occur when blood vessels supplying the face expand, causing redness.
Rosacea, sometimes referred to as adult acne, often causes soreness or burning in the eyelids and eyes, notes MedicineNet. Rosacea flares usually occur following wind or sun exposure, exercise, consumption of alcohol or spicy foods, or hot baths. Temperature fluctuations from cold to hot or vice versa can also cause flares. With proper care, sufferers can learn to control bothersome symptoms.