Working while in pain

I have been dealing with a shoulder pain for the last week and a half and it is irritating! I know that I need to be at work, happy and ready to deal with the issues at hand, but it's tough when you don't feel 100%. My friend has MS and she is in constant pain, and I don't know how she deals with that. I have been looking for any relief that I can find. I decided to try a naturopath after all, I have been doing almost everything else; massage, chiropractor, tylenol, whatever I could do. I went on Monday and his practices are DEFINETLY different. But at this point, I don't care as long as I get some relief. Today I'm feeling pretty good but I don't want to jinx it since yesterday, I would not have said that. I'm better able to deal with customers and vendors when I am feeling good. I hope it continues to get better...say a prayer for me! Thanks

Sharice