"Why Do I Have a Painful Red Bump on the Inner Side of My Thigh?"

There is a red bump on the inner thigh, which is very painful. Considering its relation to prolonged sitting, it may also indicate conditions such as folliculitis, allergic dermatitis, and other diseases, requiring targeted medication.

1. Prolonged Sitting or Standing: If you sit for extended periods, excessive local friction may directly affect the blood circulation of the skin tissue, making it more prone to red bumps. This is generally normal and basically does not require treatment.

2. Folliculitis: If folliculitis occurs, inflammatory changes take place in the hair follicles. After the invasion of bacteria, viruses, or other pathogens, the inflammatory secretions increase and accumulate without timely excretion, potentially leading to red bumps. Under the guidance of a doctor, medications such as erythromycin ointment and mupirocin ointment can be used.

3. Allergic Dermatitis: If you come into contact with allergic substances, skin allergic reactions may occur, manifesting as red bumps on the inner thigh. Under the guidance of a doctor, anti-allergic medications such as cetirizine hydrochloride tablets and loratadine tablets can be used. It is also considered to be related to conditions such as tinea cruris.

It is necessary to seek medical attention promptly for comprehensive diagnosis. Meanwhile, attention should also be paid to personal hygiene in daily life.