Hi Mrs. Betty,
Thank you for posting your query on healthcaremagic.com and giving us this opportunity to clarify your doubts.
mainly contains chloroxylenol
which when consumed in large amounts can be aspirated into the lungs and causing breathing difficulty and respiratory arrest. But for aspiration, it has be sufficient amount. Just licking is unlikely to cause anything. In any case, keep a watch on his breathing pattern. With the earliest sign of any difficulty, you might have to take him to the ER. This complication can happen a little late too, so better to be under observation for atleast 24 hours.
Dettol is also notorious to cause neurological effects like drowsiness
. Keep a watch on his mental status and his activities. Do not force him to vomit by any means.
The rash must be just contact dermatitis
due to direct contact of the chemical with his face. You can apply some skin smothening and moisturising agent. It should resolve.
Hope I have helped you to get over your doubts and I will be available in case of further queries. Take care and stay healthy.