Thanks for the query,
You might have developed an abscess
at the site of bite.
Dogs saliva contains many bacteria,
You might have got infected by them.
It is necessary to do a culture from the lump to know exactly what is the cause.
Based on this exact antibiotic can be given to you.
Please meet a dermatologist
for exact diagnosis and treatment.
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you a good health.