My baby is 5 months old and she got rashes around her neck, armpit and in some other places.... I have attached the images... please let me the how this rashes can be reduced

A. Hello mommy, A drool rash can appear around the mouth and cheeks, in the folds of your baby's neck, and on your baby's chest as a result of too much saliva causing wet skin. Drool rashes typically present as flat or slightly raised patches with small red bumps. They can also have a chapped appearance. Rashes often cause your baby's skin to feel dry, tight, itchy, or hot. That's why applying a cool, damp cloth to your baby's skin rash will comfort your little one. All you need to do is find a washcloth or rag, soak it in cold water, wring it out, and gently place it on your baby's rash.