I think my tattoo is infected what should I do?

I think my tattoo is infected, but only in one spot, it is red around the area and is rough to the touch, it is slightly warm but practically the same as a different spot. What should I do? My artist said to use neosporin CREME and lunirderm unscented lotion. Another artist said he never recommends neosporin. I... show more I think my tattoo is infected, but only in one spot, it is red around the area and is rough to the touch, it is slightly warm but practically the same as a different spot. What should I do? My artist said to use neosporin CREME and lunirderm unscented lotion. Another artist said he never recommends neosporin. I have attached a photo to get a better view of what I’m talking about. Please help me.
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