What to do for allergy to sulpha?

What is allergy to sulpha and why does it happen? What precautions should be taken to prevent an accident?

 

Allergy to any drug such as sulphonamides can develop at any time. The only precaution one can take is to avoid the use of a drug that causes allergy. There is no other way. If allergy develops for any reason whatsoever, one can take anti-allergic products such as Loridin Rapitabs (1 tablet once daily).