5yo is complaining of painful gum. Our dentist currently has no dentists due to them all having left apart from one so no appointments. Have called every dentist in my area and can't get an appointment. I've attached a photo of the white patches that are sore on the off chance that someone who knows about dentistry can advise. It doesn't look like an abscess as is white and flat. It's not round so not a canker sore. Is there anything I can put on it to soothe it? I have no idea what I'm going to do about lack of dentist!