There are more reasons for the redness and swelling of the bag on the back, including eczema, ringworm, folliculitis, etc. If the redness and swelling of the bag on the back is caused by fungal infection, it can be treated with miconazole nitrate cream. Miconazole nitrate cream is commonly used in the treatment of yeast, dermatophytes and other fungal infections of the skin or nails, such as lichen planus, tinea cruris, ringworm, tinea capitis and ringworm, tinea cruris, etc., with antibacterial and antiseptic effects. If the redness and swelling of the bag on the back is caused by a fungal infection, it can be treated with this product. Some people may experience adverse reactions such as allergy, burning sensation and itching after using miconazole nitrate cream. It is important to note that it should be used with caution in pregnant and breastfeeding women. If there is a case of redness and swelling of the bag on the back, you need to go to the hospital for a relevant examination to clarify the cause. If it is caused by fungal infection, it is recommended to use miconazole nitrate cream under the guidance of a doctor, and unauthorized use of medication is strictly prohibited.