Hi i am Dr Ahmed Aly  
  thanks for using healthcaremagic site ,
I had gone through your question and understand your concerns ..
  From your given history you mentioned standing for a long time this allows 
blood stasis and swelling of your feet , it also causes pain due to decreased venous return while standing for long times .
  You may wear some compression stockings if you have swelling , hot massages with topical anti inflammatory gels , elevation of your ankles above a pillow while resting will be helpful .
  To decrease the need to your medication you may avoid heavy lifting , 
overweight , vigorous movements and wear flexible comfortable shoes will be effective for now .
  If your pain persists i suggest you visit your physician for proper evaluation and management . 
Please click and consider a 5 star rating with some positive feedback if the information was helpful. Wish you good health,
Any further clarifications feel free to ask.