The stated type of consultation is an example of lay referral network type.
Explanation:
Bruce discussed his problem to Sam, his neighbour. Sam advises him to take the remedy. The remedy served its full purpose and the problem was solved out. Here, the communication was informal and hence establishes an informal network being laid.
The course of advice was referral. Therefore, the consultation here becomes, lay referral network system. Lay referral network undertakes informal relations such as family and friends to interpret and thereby treat any disorders in regard to the individual sought.