Brief Answer:
Disturbed gastric flora.

Detailed Answer:
Hi,
The mucosal surface of the human gastrointestinal (GI) tract is colonized by 1013-14 bacteria of 400 different species and subspecies. Gastrointestinal microflora is catagorized into two types, autochthonous flora (indigenous flora) and allochthonous flora (transient flora). Autochthonous microorganisms colonize particular habitats, i.e., physical spaces in the GI tract, whereas allochthonous microorganisms cannot colonize particular habitats except under abnormal conditions.Most pathogens are allochthonous microorganisms; nevertheless, some pathogens can be autochthonous to the ecosystem and normally live in harmony with the host, except when the system is disturbed.
Our gut consists of its own environment of micro organism called gut flora.They are responsible for proper digestion of food.Once this flora is depleted by toxins released by bacteria many of G.I symptoms like bloating belching vomiting constipation loose stools etc can be there.
i would suggest you to take a good probiotic for 1 week. This will again replenish the depleted flora. Once the flora is replenished intestinal motility and secretions will be improved. Tablet Pantoprazole (40mg once daily before breakfast) can be taken along with it to provide relief.
General advice-
thrice daily , take two tea spoon (or one big spoon) ispagula with 200 to 300 mL water
-warm water intake as much as possible
- eat small meals (rich in fiber)
-eat plentiful "fresh oranges" and "pear "
- avoid COLD milk and yogurt and AVOID junk food(NO burger , pizza) altogether
- mix few drops of lemon juice in warm water. Drink on empty stomach, early in the morning, to aid in bowel movement
- avoid beverages / alcohol/ soft drinks
- do some exercise (push-ups etc) early in the morning
PLEASE SPECIFY WHAT DO YOU MEAN BY REDNESS ON STOMACH?Do you mean to say skin over abdomen is red?
Waiting!

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Brief Answer:
Follow up answer.

Detailed Answer:
Hi again,
It can be allergic,If possible click a photo of red skin and attach with the follow up query.
An antihistaminic like Tab allegra(Fexofenadine) 180mg once daily can be taken for 3 days.
Thanks

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