Swelling on one side of the cheek after using a pore cleaner, especially if it was used vigorously or involved suction, could potentially relate to the previous cheek filler. Although it has been a year since the filler was administered, certain factors could cause localized reactions. Here are some considerations: Mechanical Pressure or Trauma: Using a pore cleaner with suction or pressure might have affected the area where the filler was placed, leading to temporary swelling. Filler Longevity: Depending on the type of filler used, some residual product might still be present, which could react to mechanical manipulation. Localized Irritation: The use of a pore cleaner can sometimes cause irritation or inflammation, especially if the skin is sensitive or the device was used aggressively. Infection or Allergic Reaction: Although less common, there could be a mild infection or allergic reaction causing the swelling. To address this issue, consider the following steps: Monitor the Swelling: If the swelling persists or worsens, it is advisable to consult with a healthcare professional to rule out any complications. Gentle Skin Care: Avoid further irritation by using gentle skincare products and minimizing mechanical manipulation of the area. Consult a Professional: If you are concerned, especially given your history with fillers, a consultation with a dermatologist or the practitioner who administered the filler can provide personalized advice and treatment options. It's always best to err on the side of caution and seek professional advice if you have any concerns about changes in the area where you had fillers.