I have five or six mosquito bites. one is bigger than a silver dollar and i haven't scratched it al all. ?

Can be normal: Even though a silver-dollar sized mosquito bite looks concerning, it may just be a normal reaction your body is having to the irritant from the mosquito. Some people, and some areas of the body are more sensitive than others. It should gradually decrease in size over the next week. If it becomes painful, warm, more raised, or much larger please see your doctor for an evaluation.