Welcome and Good morning
Your concern
1. Very bad burning while passing stools -- 2 months ago.
3. However now facing very bad anal pain even while sitting and burning while I pass stools.
4. Now worried and what can be done.
In my opinion
There are various surgical and medical causes of ano-rectal pain & Burning.
Next Steps
For this you have to consult experienced clinician Surgeon /Physician for detailed systemic clinical history, clinical examination, required investigations, proper diagnosis and management.
Health Tips
Till then you can resort to
1. Alay anxiety if any
2. Diet regulations.
3. Care of bowel if constipated.
4. Hot sietz bath.
5. Analgesics.
6. Antispasmodics.
Thanks
Regards