The child has had sore gums for two days now, with saliva constantly i…

The child has had sore gums for two days now, with saliva constantly in their mouth, clenched fists, and can't be held. They cry constantly. I gave them teething gel and ibuprofen because it's very difficult and you can see how much the child is suffering. Is this the beginning of teeth coming in? How many days can this condition last? And when does the tooth erupt?