###Human: My eye looks blood red. It is itchy and dry. Could this be a bacterial conjunctivitis? ###Assistant: Hi. I have gone through the attached pictures (attachment removed to protect patient identity). Yes, it is nothing but common bacterial conjunctivitis. Since you have blepharitis, you are more likely to get conjunctivitis. Also, blepharitis, in turn, is related to seborrhoeic dermatitis. What I can assure you is bacterial conjunctivitis is treated easily with antibiotic eye drops. Try using Gatifloxacin eye drops initially half-hourly on the first day and later you can taper to hourly dose next day and 2 hourly on the third day and so on. Just continue for 5 days, and you will be fine.  My only concern is that you have associated blepharitis. This can be treated well by cleaning the eyelids with baby shampoo daily, for a few months. Once blepharitis is controlled, your eye irritation, watering, and itching will come down.