A large red bag on the nose hurts when touched, this situation may be an infection in the nose, especially seborrhea in the nose, or rosacea and inflammatory changes. For this situation, first of all, you need to carry out anti-infection treatment, generally localized can be applied topically fusidic acid cream, or mupirocin cream, and erythromycin ointment, etc., of course, if this large bag with some purulent performance, can also be applied topically Longzhu ointment. If the pus is very obvious, you also need to make an incision to drain the pus, and also need to take oral antibiotics, generally can take oral roxithromycin, or methomycin, and doxycycline, etc., of course, in these treatments, but also need to keep the local clean and dry, to prevent the expansion of infection.