It seems that you may be having impetigo
It is staphylococcal infection
Poor immunity and poor hygiene might be responsible.
Apply antibiotic cream.
Take antibiotic with anti inflammatory drugs.
Improve immunity with immunobusters.
bath to improve hygiene.
You may consult dermatologist
for firm diagnosis.
Internal diseases and immunocompromised conditions may be ruled out.
I hope you got my answer.
Dr. Ilyas Patel MD