The USA were brushed aside by La Furia Roja in their final CONCACAF Gold Cup tune-up and Howard says it is vital the players can put that behind them and focus solely on their opening match against Canada in Detroit tomorrow.
"We've been in this position before," he said. "If we let one decision rock the whole boat, then we're not much of a team.
"This is a strong team and we're strong willed. I think you'll see the right mentality again on Tuesday. It will be difficult.
"We'll be upset and we're professionals and it hurts. It's never nice to get your butt kicked but sometimes you get up and move forward and we'll do that."