Very few people have a reaction to the lotion but that doesn’t mean you won’t be one of them. What one person reacts to, another is fine with. This is why you are required to have a patch test 24 hours beforehand. A patch test is quick and simple. It consists of us placing 2 drops of lotions behind the ear for 15 minutes. Wiping it off and waiting to see if any subsequent irritation occurs over the next 24 hrs such as redness, itching or inflammation for example.