Hi,
The swollen lymph node is due to the rash - which could be due to allergies, skin infection etc. This could be
eczema, sweat dermatitis, allergic reactions or due to friction or tight , uncomfortable clothing. You need to
wash the areas several times with fresh water. Do not use any cosmetic products at the sites. Apply calamine
lotion at the site of the lesions and see if it helps. You could take some oral antihistamine medications like
cetrizine or loratadine. You need to maintain a good personal hygiene. Wear lose comfortable clothes. Keeping
the affected area moistened can promote skin healing and relief of symptoms. It would be advisable to consult
a skin specialist for the symptoms and a proper clinical examination. Regards.