Hi..
Can understand your concern..
As per your complain it seems that you have
COMMON COLD causing you the symptoms of
sore throat and chest congestion..
Pain in stomach can be due to the flaring up of the ulcers and you need to consult your doctor to get evaluated.
For relieving the cold, congestion and sore throat you can do warm saline gargles.
Throat lozanges can be helpful.
For congestion taking pseudoepharine containing medicines can help but should be taken only after consultation with your doctor.
As these features are of viral infection antibiotics will not be effective as it can treat only bacterial infections.
As in ulcers of stomach NSAID's (Non steroidal anti inflammatory drugs)like
Ibuprofen are not indicated they should be avoided.
Steam inhalation using eucalyptus oil in water can be relieving.
Hope your query is solved..
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Thanks and regards..
Dr.Honey Nandwani Arora.