Herpes blisters are small, red, and filled with a yellowish fluid. Small blisters can cluster together and grow into a larger blister. To rule out other causes, have your doctor examine the blisters and, if necessary, take a viral culture.  Herpes virus type 1 usually causes blisters around the mouth, and herpes virus type 2 usually causes genital outbreaks. Blisters are often painful, burn, or itch. You may also experience moderately enlarged lymph nodes. You might feel tingling or pain in the affected area just before an outbreak. Fever, swollen glands, flu-like symptoms, and decreased appetite often occur, especially during the first outbreak. It's important that you doctor does a thorough examination, as there are other conditions that can cause similar bumps around your genitals, anus, or perianal area. These include syphilis, chancroid, carcinoma, trauma, or psoriasis. The first outbreak is usually more severe and lasts longer than subsequent outbreaks. Because of this, doctors typically prescribe an oral antiviral medication to manage an initial infection. The medication may be administered either episodically or continuously with suppressive therapy, depending on what your doctor prescribes.  Medications for oral and genital herpes include acyclovir (better known by the brand name Zovirax), valacyclovir (better known as Valtrex), and famciclovir (better known as Famvir). These don't cure herpes, but they help relieve symptoms and shorten the outbreak's duration. The treatment is most effective when it's begun within 1 day of the outbreak onset. If the doctor prescribes an episodic treatment, the patient should be given the medication or a valid prescription for it so that they can administer it at the first sign of a new outbreak. Within 12 months of their first outbreak, about 90% of patients report at least one recurrence. Take your medication as prescribed, and don't stop taking it prematurely, even if your symptoms improve. Depending on which medication you're prescribed, you'll take 1 to 5...

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Write a summary of the previous text in Chinese:
获取准确的诊断。 用抗病毒处方药控制首次发病。 按照医生指示用药。 涂抹抗病毒乳膏（如有）。 询问医生复发的时候是否需要用药。 如果经常发病，需要每天服用药物。 如果不想每天吃药，可以试一试间歇疗法。