Hello and welcome to HCM.
Thank you for your query.
All abscesses require treatment with systemic antibiotics. You need to consult you doctor regarding the same. In most cases, the abscesses (like the one you have) are successfully treated with an adequate and appropriate dose of antibiotics.
Rarely these abscesses require surgical drainage
. Please visit your doctor for a proper examination and treatment. In the meantime you can continue with the warm water, also please try to keep to affected area clean.
I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you.