Is It Safe To Take Alcohol With Wysolone Medication?

I am going to travel to high altitude in Himalayas, 17000 to 18000 feets. AsI am alergic to sulpha, my doctor advised me not to take Diamox. He recommended me to use Wysolone 5mg in case I experience breathlessness. If required, I will use Wysolone for a short period ( trip duration is 15 days ). I may have to consume 60-90 ml of alcohol in the nights to warm up my body in the nights. Is it safe to do so ? Age : 40 yrs, weight : 75 kg, height : 170 cms. Was diagnosed with kidney stone 2 yrs before.