Redness, swelling, and a pus-filled blister on the top of the foot

Redness, swelling, and the development of a pus-filled bump on the top of the foot may be related to factors such as sebaceous cysts, folliculitis, or ganglion cysts. Treatment should involve appropriate medication. Specific analyses are as follows:

1. Sebaceous Cyst

This is a relatively common benign skin lesion in clinical practice. It causes blockage of the sebaceous gland ducts, leading to accumulation of sebum. This results in localized pus-filled bumps accompanied by redness and swelling. It is important to actively follow medical advice and use medications such as Amoxicillin Capsules, Metronidazole Tablets, and Levofloxacin Hydrochloride Tablets for treatment.

2. Folliculitis

This is a purulent inflammatory condition caused by bacterial infection of hair follicles. The irritation can affect the follicles and surrounding tissues, causing inflammatory infection and resulting in localized pus-filled bumps. It is necessary to follow medical guidance and use medications such as Amoxicillin Capsules, Cefaclor Capsules, and Levofloxacin Hydrochloride Tablets for treatment.

3. Ganglion Cyst

This is a common benign cyst. If the top of the foot suffers trauma, it may lead to injury of the tendon sheath nodules, resulting in cyst formation along with symptoms such as pain and swelling. Active treatment under medical supervision using medications such as Nimesulide Dispersible Tablets, Ibuprofen Sustained-Release Capsules, and Diclofenac Sodium Enteric-Coated Tablets is recommended.

In addition to the above factors, similar symptoms may also be caused by eczema, palmoplantar pustulosis, or connective tissue diseases. It is important to seek timely medical evaluation and proper treatment at a hospital to promote recovery.