Martin Pleasance Tissue Salts Comb H Hayfever 125T. Hayfever is an allergic condition of the mucous membranes of the nose, eyes and upper respiratory tract. It is common during spring when sensitivity to pollen is severe, but it is very treatable by Combination H, particularly if treatment is started from six weeks before the expected onset of normal symptoms. Tissue Salts are micro doses of minerals that help rectify mineral imbalances which may be the cause of many common ailments. Tissue Salts may assist the absorption of nutrients from food and supplements. This combination of Schuessler Tissue Salts, in an easy to digest tablet, provides relief from the symptoms associated with hayfever