Have mosquito bite. More red than yesterday & itchy & feels warm to the touch. Not any bigger. Is red/itch/warmth a normal reaction? Worry about infection

Normal . The mosquito secretes saliva that you are reacting to. So it's normally red. Keep the area dry and clean. If it begins itching, you can try using calamine lotion. You don't need to worry about infection, unless you see pus developing. Usually this doesn't happen. .