Painful, burning sensation with sweating under the armpits

　　Painful, burning sweating under the arms is usually caused by conditions such as eczema, heat rash (miliaria), or folliculitis. Treatment should be selected based on the specific condition. Detailed analysis is as follows:

　　1. Eczema

　　This is generally associated with dampness and allergies in the armpit area, leading to inflammatory skin lesions. Symptoms include red rashes or papulovesicular eruptions, often accompanied by oozing and itching. Pain becomes more noticeable when stimulated by sweat. Patients are usually advised to use medications such as tacrolimus ointment or desonide cream as directed by a physician to alleviate symptoms.

　　2. Heat Rash (Miliaria)

　　Commonly occurs during hot weather. Repeated irritation from sweat can lead to heat rash, causing red rashes on the skin surface, along with localized swelling, itching, and other discomforts. It is recommended that patients use calamine lotion or compound acetic acid dexamethasone cream as prescribed by a doctor for treatment.

　　3. Folliculitis

　　Usually related to local bacterial infection, folliculitis causes firm, red papules on the skin surface, which are painful upon touch. Symptoms worsen when irritated by sweat. In such cases, patients may apply topical antibiotics such as erythromycin ointment or fusidic acid cream as directed by a healthcare provider to relieve symptoms.

　　In addition to the common causes mentioned above, other possible factors include allergic dermatitis, contact dermatitis, or tinea corporis. Patients should seek timely medical attention. During treatment, proper care of the affected area is essential, including keeping the area clean and dry.