My axolotl had hit the glass, hence the bump. The drug was bayotic otic drops to apply on the bump to prevent an infection. Indeed, my axolotl naturally has yellow / golden iridophores on the mouth. The vet did not know if there was a bacterial infection or not, so she gave me this treatment just in case. After the treatment, the bump has disappeared. However, yesterday I noticed a white bump like a pimple in the same place as in February. If it's a bump, what should I do?
The first picture is after the first bump has disappeared (after the treatment). The other two photos were taken yesterday. You can see his "pimple".