Ambroxol is a phlegmatic drug that is often used to induce phlegm in respiratory tract infections and when phlegm production is not favorable. There are many phlegm remedies available, and if you are allergic to Ambroxol, you can use other phlegm remedies, but because being allergic to a drug means that you may be allergic, you need to pay attention to other phlegm remedies and try a small amount of the drug first, and pay attention to whether there are any suspected allergic symptoms, because even traditional Chinese medicines can sometimes have allergic reactions. There are many styles of phlegm remedies, such as acetylcysteine, and eucalyptus pinene, eucalyptus oil, if you are allergic to one kind of allergy, go to see the other kind, if you can’t use it, there is another way, that is, saline nebulization, which can also achieve a phlegm remediation, and in addition to the traditional Chinese medicine of clearing away heat, clearing the lungs, and removing the phlegm of the medicines have a very good phlegm remediation effect.