I went through a similar situation where I wasn't sure what was causing my nail problems. I initially saw my regular doctor who suspected fungus but wasn't completely certain and didn't really offer much beyond a prescription for oral medication that I was uncomfortable taking. I decided to get a second opinion from a clinic that specializes in nail conditions and I'm glad I did. They did a proper examination and confirmed it was fungus, then explained all my treatment options in detail. I ended up getting laser therapy for toenail fungus at https://bellasanamedspa.com/ and they were thorough in making sure we had an accurate diagnosis before proceeding with treatment. They even explained how to differentiate fungal infections from other nail conditions so I understood what I was dealing with. Having that specialized expertise made me feel much more confident about the diagnosis and treatment plan. If you suspect fungus, I'd recommend consulting with specialists who deal with these issues regularly - they tend to have more experience and better solutions.