Rosacea. Sometimes people who get blotchy red flushing skin can have a disorder called rosacea. Rosacea comes in many forms including facial flushing (redness), pimples, pustules (pus-bumps), cysts and nodules. Also, it can affect the eyes causing dryness, grittiness, stinging and burning sensations. Sunlight/uv rays are the most common trigger for rosacea, so wear spf 30+ on your face.