1.5 years after getting silicone breast implants and 3 months after CoolSculpting. I developed a rash. Advice?

Coolsculpting and breast implants would not cause a systemic rash.   Rashes are difficult to tell from photos without more information.  However, looking at the picture the rash could be a yeast rash or eczema.  Seek out a Dermatologist for evaluation.  Best of luck.

It is best to see a dermatologist who can evaluate your rash in person.  You would not develop a rash from CoolSculpting 3 months after the procedure and in other areas that were not treated with the CoolSculpting applicator.  I hope that helps!

Looking at your pictures it is very difficult to see your rash. CoolSculpting did not cause your rash. You need to follow up with your physician since I believe your rash might be a medical issue not a cosmetic one.
Good luck.