Can you give a little history? When did this start? Description of the bubbles, translucent, appear full of air or fluid? Which species? Description of the tank and tank mates. Water parameters including temp. If at all possible, a picture would be very helpful.
Also please let us know what you have on hand for meds. If you are going to treat, you will need to rush as the weekend is coming quick and anything that needs to be shipped needs to get ordered.
Dan