What's the reason for a baby's farting for over 20 days?

Patient's question:

Hello doctor, my baby is just over 20 days old, but her buttocks are very red and she has many small bumps... How should I treat it? I have applied diaper cream and purple root oil to her, but there has been no improvement in two or three days. What should I do? Thank you

Doctor's answer:

Analysis of the Condition: In medicine, baby's red buttocks are also known as diaper rash. The main cause is prolonged moisture and heat on the buttock skin, which can worsen the condition. Stimulating substances in feces and urine can cause the buttocks to become red, and frequent contact with cleaning solutions is another contributing factor. The main symptoms of diaper rash include redness in the diaper-wrapped area, sometimes with scaling or small blisters. In severe cases, it may develop into pustules, broken skin, or ulcers. Fungi and bacteria can complicate or exacerbate diaper rash. Diaper rash is not a serious skin condition, as a newborn's skin grows rapidly. With proper care, it generally improves within 2-3 days. Otherwise, it can affect the baby's quality of life.
Advice:
1. Minimize the use of diapers, as this is the best way to prevent diaper rash. It is ideal to let the baby's buttocks air out for several hours each day.
2. Change diapers frequently. This is also a preventive measure. Newborns urinate approximately every 15 to 20 minutes, though their urine output is only about a tablespoon. We still recommend changing clean diapers every 2 to 3 hours, especially after the baby has a bowel movement, and changing immediately afterward.
3. For severe skin breakdown, you can use a household desk lamp with infrared functionality to irradiate the buttocks. However, be sure to maintain a safe distance and ensure moderate temperature. Irradiate for 1-2 times a day, each time for 15 minutes.
4. If the diaper rash is simple (i.e., not infected), you can apply diaper rash cream, ointment, or other infant skincare products. If it is infected, use antifungal creams such as Daktarin or clotrimazole.
5. When washing diapers, avoid using strong irritants like soap or laundry detergent. For urine-soaked diapers, use boiling water to sterilize and then rinse with clean water. For bowel-soiled diapers, use mild alkaline items like mild soap to clean, and then expose them to sunlight for drying.