What should I do if my legs itch all over the next day after being exposed to dirty water?

Itchy skin on the legs on the 2nd day after contact with dirty water, and all of them are small bumps, which may be contact dermatitis, and the treatment mainly includes strengthening skin care, and medication.
1. Enhance skin care: keep the skin clean and dry, avoid contact with dirty water again, and avoid excessive scratching and stimulation.
2. medication: under the guidance of a doctor, topical mometasone furoate gel, dianabed cream and other glucocorticoid drugs, with significant itching can be oral cetirizine, loratadine and other oral antihistamines.
Itchy legs long pimples should be timely medical care, clear diagnosis, due to individual differences in therapeutic effects, the specific medication must strictly comply with the doctor’s instructions.