Hooded eyes getting better when I take Naphcon-A, is this just allergies or do I need surgery?

For significant improvement, hooded eyelids require surgery if there is enough skin. For nonsurgical treatments: Radiofrequency (Thermage or Venus Legacy/Viva), injectable fillers, and a Botox brow lift can help contour the eyebrows and lift the eyelid skin. I recommend getting a formal evaluation with an experienced cosmetic dermatologist. Best, Dr. Emer.

You are likely referring to upper eyelid ptosis. Eye drops are NOT the correct long-term treatment. See an oculoplastic surgeon for evaluation and consideration of eyelid ptosis surgery which can be done using scar-less technique under local anesthesia. See following link and video.

Your question can only be answered professionally in the context of more information.  Is the problem worsening, is it symmetric, what is your levator function, what result you want, and more.  Consider personal consultation.