Hi sir,
No need of another dose .Anyways it works. If it is dissolved in water, the pain relief is faster, that's it. But pain killers relieve only pain and make you comfortable for only 3 to 4 hr
Next Steps
If this is taken for dental prob means please visit dentist, discuss treatment plan and start your treatment along with antibiotics to solve the issue.
Health Tips
Please take an antacid ( Pan 40) for this tab.
Hope this helps you sir.