The best replacement for hot flash is fever.

The best alternatives to hot flash are rated as following:
★★★★★  fever
★★  night sweat
★  hot flush
★  anxiety attack
★  panic attack
★  night sweats
★  just hot
★  flushing

Your alternative for hot flash is not listed? Suggest!
Speaking about hot flash, one probably shouldn't forget about sweating.

Other search terms related to hot flash and their ratings are:
★★★★★ sweating
★★ heart palpitations
You have in mind a companion for hot flash and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of hot flash in all years. Click on graph for more.
hot flash
fever
night sweat