I am about to start taking antabuse. Is the physical reaction bad against vingegar and other foods?

Yes, you should not take any products which have alcohol content in them
Alcohol consumed and mixed with Antabuse causes symptoms that include throbbing in the head or neck, painful headaches, flushing, nausea, sweating, hyperventilation, dizziness, and other disorienting symptoms. In mild cases this can last 30 to 60 minutes or longer in more severe cases.

Basically these are the precautions needed while using Antabuse:

Do not drink any alcohol, even small amounts, while you are taking this medicine and for 14 days after you stop taking it, because the alcohol may make you very sick. In addition to beverages, alcohol is found in many other products. Reading the list of ingredients on foods and other products before using them will help you to avoid alcohol. You can also avoid alcohol if you:

* Do not use alcohol-containing foods, products, or medicines, such as elixirs, tonics, sauces, vinegars, cough syrups, mouth washes, or gargles.

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* Do not come in contact with or breathe in the fumes of chemicals that may contain alcohol, acetaldehyde, paraldehyde, or other related chemicals, such as paint thinner, paint, varnish, or shellac.

* Use caution when using alcohol-containing products that are applied to the skin, such as some transdermal (stick-on patch) medicines or rubbing alcohol, back rubs, after-shave lotions, colognes, perfumes, toilet waters, or after-bath preparations. Using such products while you are taking disulfiram may cause headache, nausea, or local redness or itching because the alcohol in these products may be absorbed into your body. Before using alcohol-containing products on your skin, first test the product by applying some to a small area of your skin. Allow the product to remain on your skin for 1 or 2 hours. If no redness, itching, or other unwanted effects occur, you should be able to use the product.

* Do not use any alcohol-containing products on raw skin or open wounds.

Check with your doctor if you have any questions.

http://www.drugs.com/cons/antabuse.html

http://www.drugs.com/drug-interactions/disulfiram,antabuse.html

http://www.drugs.com/food-interactions/disulfiram,antabuse.html