My relative got B1/B2 visitor visa for US for 5 years and it is still valid for 3 more years. She have been to the US twice in the past. She returned to Nepal last time in this February; she again likes or wants to visit US again in next one month.

But I heard that to be eligible for return to the US under visitor visa, one has stay outside the US for 6 months or more. Otherwise, there is chance of deportation from the airport. Is this true? Please suggest what she should do.