If I had a tb skin test done and it is a large red bump (approximately size of thumb) should I be worried? I was going to get it checked today but the location was closed.

See someone. It sounds like you have a positive response to the test. This might mean that you have been exposed to tb in the past or possibly if you spent time overseas growing up that you had a vaccination that would cause a positive test. Or, worst case, you have to. You need to get this looked at as soon as you can before the reaction subsides.

Related Questions

I just had a TB skin test done last week and I had it read and they said it was negative however I still have a little red bump how do I get rid of it?

PPD Test. You likely get a small skin reaction to TB test that is not large enough to be called positive in your case. It is a type of delayed hypersensitivity reaction due to immune cell infiltration and inflammation. You can put otc cortisone cream on the lesion 2-3 times a day to make it go away faster. Read more...
Goes away on its own. The small bump from the TB test should go away on its own. Do not scratch or pick on it, as it might irritate the site & cause it to take longer to heal. In some cases it has taken a couple of weeks for it to completely disappear. Read more...