No, it is not at all dangerous to reduce pimple redness overnight through use of aspirins. Young teenage girls are horrified when they see these horrid looking swellings on their otherwise smooth faces appearing suddenly and don't know what to do. It's simple. To get rid of them you need to take one or two tables of aspirin and add a little water to make a smooth paste and then apply this paste to the affected part and cover the pimple well. Allow a few minutes to dry before you hit the pillows. In the morning, your pimples will not have the redness and the swellings would have reduced.