 [ Symptoms ] wearing anything synthetic causes extreme nausea faintness and beating heart [ Disease ] of course dehydration can aggrevate your problem i recommend a patch test to determine the chemicals you are allergic to also wear clothing that is made out of natural fabrics such as cotton and linen wear clothing that is light coloured as these will contain less dye wear loose fitting clothing in hothumid environments avoid clothing that is labeled “non iron” and “dirt repellent” as it is likely these have been chemically treated avoid clothing marked “wash separately” as this implies dyes easily bleed from the fabric