I'm a carrier of tb i took medication for it should i tell my sons doctor if so what will they do to him?

Yes: Congratulations on getting treated for your tb. You should definitely tell your son's doctor. They will likely do screening for him, such as placing a PPD - the skin test that can help diagnose tuberculosis. If the test is positive, he may need treatment as well in order to avoid long-term consequences of undiagnosed tb.

See below: It seems you had latent TB (tuberculosis) and received a treatment for it. Let your son's doctor know if this was a recent event. Your son may get TB skin test.

Yes: If you have a positive skin test for TB +took medication to prevent active TB it is still important to let your baby's doc know. Depending upon other factors you might be asked to have a chest xray. Other family members including your baby may need to be tested. This is crucial as TB can be serious in babies. Prevention, early intervention is key. Let the doctor know!