Brief Answer:
Take Rifaximin and probiotic

Detailed Answer:
Hello! Thanks for putting your query in HCM. I am a Gastroenterologist.

Pain and discomfort in the stomach can be due to passing loose stool.

And loose stool is due to either any recent GI infection for which your doctor has prescribed ofloxacin and ornidazole or it may be due to colectomy itself or side effect of Folfox regime

So I will advise you to take tablet rifaximin 400 mg twice a day and a probiotic for at least 2 weeks. These both medicines will help in restoring normal bacteria flora in your intestine.

Meawhile for symptomatic relief you can take an antisecretory agent loperamide 2mg whenever loose stool troubles you. It will halt the loose stool

Also take plenty of fluids and electral powder to prevent fluid and electrolyte in sufficiency

For relief in pain and discomfort take tablet drotavarine

Get prescription of these medicines by your doctor after discussion with him

I hope I have answered your query and this will help you . Wish you a good health

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Brief Answer:
Apply local ointment of lignocaine, Nitroglycerine, and take sitz bath

Detailed Answer:
WElcome back

Pain while defecation can be due to anal fissure. For confirming get proctoscopy examination. For the pain and discomfort, use a topical anesthetic cream such as Lignocaine gel. Use Diltiazem or Nitroglycerine cream before passing stools, in order to relieve the spasm of the anal sphincter which cause pain. Try Sitz baths: warm water bath that covers your hips and buttocks for two to three times a day for 20 minutes are often used to relieve pain, itching, or muscle spasms.

Wish you a good health

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