Penile redness and swelling can be considered inflammation, allergy and other causes, should keep the private parts clean, and in serious cases, medication is used. When there is inflammation and infection, it will cause the symptoms of non-specific inflammation on the patient’s penis, that is, local redness, swelling and heat. When the patient is allergic, due to the stimulation of allergens on the body, can also lead to the appearance of symptoms of penile redness and swelling. 1. For patients with penile redness and swelling, mild cases can be treated with general treatment, keeping the private parts clean and dry, and changing underwear often, so as to avoid the propagation of bacteria, thus improving the symptoms. 2. For serious patients caused by inflammation, the use of drug therapy, that is, the use of antibacterial drugs, there can be coated drugs, such as erythromycin ointment, etc., can play a role in the local area, the effect is fast; can also be taken orally broad-spectrum antibiotics, such as levofloxacin. 3. If the penis is red and swollen due to allergy, find the allergens in time, avoid re-exposure, avoid scratching the penis, so as to avoid infection, and oral loratadine and other anti-allergy drugs for treatment. When there is redness and swelling of the penis, you should consult a doctor in time to avoid delaying the condition. The above drugs should be used under the guidance of a professional physician.