I use natural deodorant and recently I think it’s been giving me lymph nodes under my arms. It was just only my left armpit, but this morning I feel a lump on my second. Does anyone know what I should do? Should I stop using natural deodorants or maybe switch the brand? This happened with two brands: secret and native. The thing is I loved the natural secret deodorant and I felt like it really worked for me, until I had that one persistent bump.