Is there a cure for mild gastritis?

Check it out: Check it out if persistent. Avoid alcohol and starting with otc meds to start would be ok.

Try antacids: Nnon spice acidic foods, relax- if o help see pcp.

Yes, usually: Common causes of stomach irritation are such things as medicines (like nonsteroidal anti-inflammatories), nicotine, and alcohol so be sure that you are careful about such things or stop them. Reflux can cause gastritis, so consider eating 6-7 small meals throughout the day, elevate the head of your bed. Tums (calcium carbonate) can help with symptoms as can otc acid meds. But if pain persists be sure of the diagnosis.

Antacids: I would start with some over the counter antacids like omeprazole, and if it is not improving be evaluated by your physician. Avoid Ibuprofen, naproxen, aspirin, alcohol, tea, coffee, and other acidic drinks.