The only thing I can suggest for right now is to try using the 10mg tablets, because they do not have
dye in them. If it is the
dye in the tablets that is causing your problem, you can avoid the
dye that way. If you haven't already consulted a dermatologist and allergist, I would see both types of specialists. In the future, there should be another drug on the market that can take the place of warfarin for mechanical heart valve patients, but not yet.