no. in order for a medical provider to determine that nature of any skin lesion they would need to examine your son first-hand. a vague description of "sores" just isn't specific enough to narrow down the many many possibilities.
i have 11 yrs old son who gets very small sores on his forehead. they appear for a while and then go away. this has been going on for about a year. they are right in the middle of his forehead and there are about 4 or 5 small sores. i put melaleuca oil and ointment on it and it goes away. do you know what this could be?