Penile dermatitis is also known as circumcision, the infection can appear localized redness and swelling accompanied by erosion, and there will be pain in urination and so on. Treatment: 1, keep the local clean, it is recommended to use potassium permanganate solution diluted for local cleaning. After cleaning to keep the local dry, every time after urinating need to wipe the urine stains dry, avoid urine in the local residue; 2, external anti-infective drugs, such as Baiduobang ointment external application 3 times / day, each time a little, or choose to erythromycin ointment local external application, 3 times / day, one week of continuous use, external application of the foreskin red, swollen and broken parts; 3, inflammation is more serious patients accompanied by frequent urination, urinary urgency can be taken orally antibiotic treatment. Cefixime capsules can be taken orally, 1 capsule / times, 2 times / day, 3 consecutive days of oral, to observe the inflammation subside; 4, for the existence of circumcision or circumcision patients, waiting for the inflammation control after the circumcision surgery, which can reduce the probability of circumcision.