Hi thanks for your question.
The symptoms you have described are of upper respiratory tract
alone will do nothing to your infection.
You need antibiotics along with antihistiminics and nasal decongestant.
Yes you can take Augmentin
625 mg but dose is 8 houtly.
It is very safe and very effective broad spectrum antibiotic.
You can continue paracetamol 500mg 8hourly alone or in combination with antihistiminics.Addationally for blocked nose you can use nasal decongestant.Hope this answers your question.