My first point of suggestion is avoid visiting a dental clinic or hospital for next fifteen days untill the COVID-19 pandemic graph flattens. It is more likely to spread in dental offices.
And as first hand home remedy you may try gargling your mouth thrice daily atleast with hot salt water. And concentrate on the side where the tooth is erupting.
Next Steps
If you don't find relief even after that do an online consultation with any of the dentist and get the experts opinion through video call or sending photos.
Health Tips
Dental offices are considered high risk to spread the COVID-19 so kindly avoid direct visit untill the curve flattens.