thanks for the query to H.C.M. Forum.
Recurrent throat infection
, cough, cold, sore throat
, ticking sensation in throat ,jaw may be due to allergic bronchitis
with super added infection.
Ulcer ( recurrent ) may be due to side effects of antibiotics , so along antibiotics use lactic acid bacillus .
Local gel can be used for ulcer site.
In my opinion use of antibiotics are not necessary , rather anti allergic tablet + bronchodilator
will be enough.
Consult a physician and get his opinion.