Quick things to administer when someone gets asthma

Patient: My boyfriend has asthma. He got an asthma attack this morning. We had to rush him to the nearest hospital for nebulization and a shot.Can you tell me what I can give him immediately when he gets an attack? Something carryable? He said sugar works for him. Any meds? tablets?

Symptoms: Fever cough nose blockade breathlessness

Doctor: