Pimples on the sides of the nose that are painful and hard may be due to folliculitis in the area, or it may be due to a significant inflammatory reaction to rosacea in the area, or it may be due to rosacea formed by a follicular worm infection. In addition, it may also be due to other infections in the area, such as herpes simplex, which is a viral infection, because the area is also a good site for herpes simplex. If infected with the herpes virus, blisters may appear on the site based on an inflammatory reaction, some of which may be clustered, so that at the beginning there may be acne and painful infiltration. After the appearance of this viral infection, aggressive antiviral treatment is required.