I was replacing my liquid metal thermal paste on my delidded i7 6700k, and in the process of using the Artic Silver Surface Purifier, I used a bit too much while holding the CPU and some of it dripped onto my finger then onto the bottom of my CPU (golden contact plates that meet the motherboard). There's some slight discoloration and I really want to clean it, but I only have this isopropyl 70% cleaning pad that came with my coollaboratory liquid metal kit titled "Reinigungstuch". I've seen people use ~91% isopropyl alcohol and q tips on the bottom of their CPU, but are the pads safe enough to use? Should I be worried?