Some broad-spectrum antibiotics, such as penicillin, can be used in the early stages of skin infections, but they should not be used for long periods of time or in large quantities. If the symptoms do not improve significantly or even worsen, you should go to the hospital to get a clear diagnosis from your doctor and then choose the appropriate medication according to the specific pathogen, such as antiviral medication for viruses and antifungal medication for fungi.
For drug-resistant bacteria, a sensitive antibiotic should also be used based on a drug sensitivity test.