Infectious rashes may be caused by bacterial infections, viral infections, fungal infections, etc. They can be treated by oral medication and application of medication as prescribed by the doctor. 1. Bacterial infections: Infectious rashes caused by bacterial infections usually include folliculitis, impetigo, boils, etc., and the patient’s skin may appear abscesses, vesicles, oozing, etc. The patient can take oral metronidazole tablets, levofloxacin hydrochloride tablets and other medications. Oral metronidazole tablets, levofloxacin hydrochloride tablets and other drugs can be used to treat. 2. Viral infections: Viral infections cause infectious rashes, such as measles, rubella and herpes zoster, which may cause blisters and peeling of the skin. Ribavirin capsules, oseltamivir phosphate capsules and other drugs can be taken orally. 3. Fungal infections: Infectious rashes caused by fungal infections usually include ringworm, tinea capitis, tinea cruris, tinea cruris and so on, and the patients may have symptoms such as skin swelling, erythema, flaking and so on. You can apply compound ketoconazole cream, or oral itraconazole capsules and other drugs to treat. Infectious rashes include many types, patients need to be timely through the appropriate examination to clarify the cause of the disease, and then the cause of the treatment, the application of medication can not be used blindly, not blindly increase or decrease the amount of medication. All of the above drugs should be used under the guidance of a doctor.