Hello! My name is Jessica, I am a physician assistant, and one of the providers at Aesthetic Skin in Winnetka and Chicago. This is a great question. The drooping and sagging of your left eyelid that worsens throughout the day could be indicative of several underlying issues, such as eyelid laxity, muscle fatigue, or even mild ptosis. Botox and eyelid fillers might offer some temporary improvement but may not fully address the root cause, especially if there is significant muscle weakness or structural changes. Botox can be used to treat certain types of eyelid droopiness by relaxing the muscles around the eyes, but it’s generally more effective for fine-tuning and addressing specific concerns rather than providing a complete solution. Eyelid fillers can help by adding volume and improving the appearance of hollows or shadows, but they won’t correct droopiness or sagging caused by structural issues. Given that the issue seems to become more pronounced as the day progresses, it may be worthwhile to consult with an ophthalmic plastic surgeon or a specialist in eyelid surgery. They can provide a comprehensive assessment to determine whether the sagging is due to a condition like mild ptosis, excess skin, or other factors that might require surgical intervention. Surgery, such as a blepharoplasty, might be necessary if there is significant structural laxity or muscle weakness contributing to the problem. I hope this helps and best of luck!