Better go through a thorough check up. It happened to my mum. She tried ways, even going to the doctor but nothing helped. Went to TCM, gave her this and that. Never actually helped. Most importantly, it was a failed diagnosis by the doctor during the early stage of TB, which exacerbated her case. When we found out, it was actually too late.

So seek a medical advice, you never know what is the actual cause. It could be viral, bacterial, etc., treat it before it's too late.