Wait 30 seconds then reapply a second coat. If you are removing a 1 step gel wait 2-3 mins and push the color with a gel pusher tool a cold sensations normal.
Finish buffing the nail. If you have multiple gel layers or a 3 step gel mani, you need to repeat the process.
Other info:
Avoid skin contact as it may tingle if you have dry/cracked skin or micro cuts around the nail area.
Store in a cool dry place.
Avoid direct sunlight.
Close tight when not in use to avoid the product from drying out.