Never had CLM, but a few days after returning from my first trip to Negril a rash began to form on my mid-back. The rash worsened until large blisters or pimples began to form and it was uncomfortable and itchy when I leaned back. I immediately ran to the walk-in clinic at my local CVS Pharmacy. The Physicians Assistant at the clinic couldn't say exactly what it was, but he was pretty sure that it was some type of fungal infection that I picked up in Jamaica. I most likely caught it by sitting shirtless on some random lounger on the beach, without properly placing a towel on it. The PE prescribed me a topical cream that cleared it up in a week's time. I don't remember the name of the prescription, but I did have to go to another CVS to pick it up, as its not something that is normally carried at some pharmacies.

The lesson here - always put a towel on a beach lounger before you lay in it.