Please do not attempt self vomiting
and further delay first aid
The method of removal depends on what is the chemical content of the liquid and how much you have ingested.
If there is any exposure to eyes and skin then wash with lots of water.
If any fumes inhaled and experiencing breathing difficulty rush to fresh air.
If ingested some chemicals are best not vomited since they can cause more damage due to passage in lungs and airways.
So please contact your physician or emergency room immediately and do take the bottle of poison ingested along with you .
Do not delay as sometimes though there are no immediate symptoms severe pneumonitis
can start after 5_6 hrs.
Hope I have answered you.
All the best.