In general, persistent coughing may be caused by ongoing environmental irritation, low immune function, allergic cough, prolonged acute bronchitis, gastroesophageal reflux disease (GERD), or other reasons. It is recommended to seek medical attention promptly, identify the underlying cause, and then improve symptoms through general measures, medication, or other treatments under a doctor's guidance. In daily life, avoid smoking and secondhand smoke, and limit consumption of spicy or overly sweet foods.

Elevated C-reactive protein (CRP) levels often indicate the presence of inflammation or infection in the body, with infections being a common cause. In bacterial infections such as pneumonia or urinary tract infections, CRP levels typically rise significantly within a short period, and the degree of elevation correlates with the severity of the infection. In viral infections, CRP elevation is usually mild, making it a useful reference for differentiating between types of infections.

In general, drug allergy rashes may be caused by individual allergic predisposition, inappropriate drug dosage or duration of treatment, direct sensitization by the drug, sensitization by drug metabolites, or coexisting underlying skin conditions. It is recommended to seek medical attention promptly, identify the underlying cause, and then improve the condition through general management, medication, and other treatments under a doctor's guidance.

Generally speaking, there is no such thing as "the most effective medication for treating rhinitis." Commonly used medications for rhinitis include budesonide nasal spray, loratadine tablets, montelukast sodium chewable tablets,赛洛唑啉盐酸鼻用喷雾剂 (note: this should likely be "oxymetazoline hydrochloride nasal spray"), and amoxicillin-clavulanate potassium dispersible tablets. Patients should follow medical advice and select appropriate medications based on the type and underlying cause of their rhinitis.

In general, infant eczema may be caused by incomplete skin barrier function, unsuitable environmental temperature and humidity, food allergies, contact allergies, or secondary bacterial infections. It is recommended to seek medical attention promptly, identify the underlying cause, and then improve the condition through general management and medication under a doctor's guidance. In daily care, bathe the baby 2–3 times per week for 5–10 minutes each time.

Infection is a common cause of elevated marker levels. During bacterial infections such as pneumonia and pyelonephritis, serum amyloid A protein rapidly increases within hours, and the extent of elevation often correlates with the severity of the infection. Viral infections, such as influenza and coronavirus infection, can also lead to increased levels, although the rise is typically less pronounced than in bacterial infections, making it a useful adjunct for differentiating types of infection.

Trichomonal vaginitis may be caused by poor personal hygiene, decreased estrogen levels, sexual transmission, indirect contact infection, or vaginal flora imbalance. It is recommended to seek medical attention promptly, identify the underlying cause, and receive symptomatic treatment under a doctor's guidance. In daily life, avoid wearing tight synthetic underwear and maintain good ventilation of the external genital area. Maintain a light diet and reduce intake of spicy and irritating foods.

There is usually no single most effective eye drop that works for all types of keratitis. Treatment of keratitis requires selecting appropriate eye drops based on the underlying cause. Commonly used options include levofloxacin eye drops, acyclovir eye drops, fluorometholone eye drops, natamycin eye drops, and sodium hyaluronate eye drops. The choice of eye drops should be based on accurate diagnosis of the type of keratitis; self-medication without medical guidance is not recommended.

In general, cystic acne may be caused by excessive sebum production, abnormal keratinization of hair follicle openings, bacterial folliculitis, hormonal imbalances, or polycystic ovary syndrome. It is recommended to seek medical attention promptly, identify the underlying cause, and follow a treatment plan—such as general management and medication—under a doctor's guidance. In daily life, maintain clean and dry skin, and avoid touching or squeezing acne lesions.

Generally speaking, there is no single best medication for treating burns. The choice of treatment should be based on the depth of the wound and associated symptoms. Commonly used medications include moist burn ointment, silver sulfadiazine cream, recombinant human epidermal growth factor gel, Jingwanhong ointment, and mupirocin ointment. Prior to applying any medication, the wound should be properly cleaned. For mild burns, rinse the affected area with cool water for 15 to 20 minutes first.