Red and swollen pimples are usually inflammatory acne and normally, Metronidazole Gel is effective in treating red and swollen pimples. Metronidazole Gel has an anti-anaerobic effect that can induce bacterial death and is indicated for inflammatory papules. Patients may experience adverse reactions such as dryness of the affected skin, burning sensation, and skin irritation after using the medication. It should be noted that, when applying metronidazole gel to avoid contact with the eyes, mouth, nose and other places, allergic individuals need to be careful to use, pregnant women and lactating women must be prohibited. It is recommended that patients use Metronidazole Gel under the guidance of a doctor to avoid interactions with other medications being used. If you need to use topical metronidazole gel to treat red acne, it is recommended to go to a regular hospital to consult a doctor, under the guidance of the doctor to use the drug, is strictly prohibited unauthorized use of drugs.