Hi, thanks for using healthcare magic
The sinus congestion would be relieved by the use of a decongestant and anti histamine
. The decongestant can be oral or topical.
You may consider adding a topical nasal spray
to that regimen because they have been shown to be effective in sinusitis
. If the symptoms persist, are associated with significant facial pain
or fever then you may need to be assessed by your doctor to determine whether you need antibiotics.
In terms of the burping and gas, this may be due to a number of different conditions such as GERD, gas forming foods such as some vegetables, lactose intolerance
. You can consider the use of medications indicated for reflux to see if they improve your symptoms.
I hope this helps